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  • 北京元坤伟业科技有限公司

         该会员已使用本站17年以上

  • TPS40009DGQR
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  • QQ:857273081QQ:857273081 复制
    QQ:1594462451QQ:1594462451 复制
  • 010-62104931、62106431、62104891、62104791 QQ:857273081QQ:1594462451
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  • TPS40009DGQR图
  • 集好芯城

     该会员已使用本站13年以上
  • TPS40009DGQR 现货库存
  • 数量26561 
  • 厂家TI(德州仪器) 
  • 封装 
  • 批号22+ 
  • 原装原厂现货
  • QQ:3008092965QQ:3008092965 复制
    QQ:3008092965QQ:3008092965 复制
  • 0755-83239307 QQ:3008092965QQ:3008092965
  • TPS40009DGQR图
  • 深圳市恒益昌科技有限公司

     该会员已使用本站6年以上
  • TPS40009DGQR 现货库存
  • 数量5000 
  • 厂家TI 
  • 封装MSOP10 
  • 批号23+ 
  • 全新原装,公司现货销售!
  • QQ:3336148967QQ:3336148967 复制
    QQ:974337758QQ:974337758 复制
  • 0755-82723761 QQ:3336148967QQ:974337758
  • TPS40009DGQR图
  • 深圳市拓亿芯电子有限公司

     该会员已使用本站12年以上
  • TPS40009DGQR 现货库存
  • 数量21000 
  • 厂家TI/德州仪器 
  • 封装MSOP8 
  • 批号23+ 
  • 代理原装现货,价格优势
  • QQ:1774550803QQ:1774550803 复制
    QQ:2924695115QQ:2924695115 复制
  • 0755-82777855 QQ:1774550803QQ:2924695115
  • TPS40009DGQR图
  • 深圳市恒达亿科技有限公司

     该会员已使用本站12年以上
  • TPS40009DGQR 现货库存
  • 数量3000 
  • 厂家TI 
  • 封装MSOP10 
  • 批号23+ 
  • 原装正品特价销售
  • QQ:867789136QQ:867789136 复制
    QQ:1245773710QQ:1245773710 复制
  • 0755-82772189 QQ:867789136QQ:1245773710
  • TPS40009DGQR图
  • 深圳市宗天技术开发有限公司

     该会员已使用本站10年以上
  • TPS40009DGQR 现货库存
  • 数量23200 
  • 厂家TI 
  • 封装N/A 
  • 批号21+ 
  • 全新原装有现货库存--价格有优势
  • QQ:444961496QQ:444961496 复制
    QQ:2824256784QQ:2824256784 复制
  • 0755-88601327 QQ:444961496QQ:2824256784
  • TPS40009DGQR图
  • 深圳市西源信息科技有限公司

     该会员已使用本站9年以上
  • TPS40009DGQR 现货库存
  • 数量8800 
  • 厂家TI 
  • 封装MSOP10 
  • 批号最新批号 
  • 原装现货零成本有接受价格就出
  • QQ:840638855QQ:840638855 复制
  • 0755-84876394 QQ:840638855
  • TPS40009DGQR图
  • 深圳市恒嘉威智能科技有限公司

     该会员已使用本站7年以上
  • TPS40009DGQR 现货库存
  • 数量12578 
  • 厂家TI/德州仪器 
  • 封装MSOP10 
  • 批号21+ 
  • 原装恒嘉威价格最实在
  • QQ:1036846627QQ:1036846627 复制
    QQ:2274045202QQ:2274045202 复制
  • -0755-23942980 QQ:1036846627QQ:2274045202
  • TPS40009DGQR图
  • 北京奕芯科技有限公司

     该会员已使用本站12年以上
  • TPS40009DGQR 现货库存
  • 数量40 
  • 厂家TI 
  • 封装MSOP10 
  • 批号23+ 
  • 当天发货原装正品
  • QQ:335885516QQ:335885516 复制
  • 010-81030386 QQ:335885516
  • TPS40009DGQR图
  • 深圳市芯脉实业有限公司

     该会员已使用本站11年以上
  • TPS40009DGQR 现货库存
  • 数量2500 
  • 厂家TI 
  • 封装HVSSOP (DGQ) 
  • 批号新批次 
  • 新到现货、一手货源、当天发货、bom配单
  • QQ:2881512844QQ:2881512844 复制
  • 075584507705 QQ:2881512844
  • TPS40009DGQR图
  • 深圳市富科达科技有限公司

     该会员已使用本站13年以上
  • TPS40009DGQR 优势库存
  • 数量20000 
  • 厂家TI 
  • 封装MSOP10 
  • 批号22+ 
  • 原装现货
  • QQ:1220223788QQ:1220223788 复制
    QQ:1327510916QQ:1327510916 复制
  • 86-0755-28767101 QQ:1220223788QQ:1327510916
  • TPS40009DGQR图
  • 深圳市拓森弘电子有限公司

     该会员已使用本站1年以上
  • TPS40009DGQR
  • 数量6340 
  • 厂家TI/德州仪器 
  • 封装MSOP10 
  • 批号18+ 
  • 全新原装正品,库存现货实报
  • QQ:1300774727QQ:1300774727 复制
  • 13714410484 QQ:1300774727
  • TPS40009DGQR图
  • 深圳市恒达亿科技有限公司

     该会员已使用本站16年以上
  • TPS40009DGQR
  • 数量5680 
  • 厂家TI 
  • 封装MSOP-10 
  • 批号23+ 
  • 原装正品特价销售
  • QQ:867789136QQ:867789136 复制
    QQ:1245773710QQ:1245773710 复制
  • 0755-82723761 QQ:867789136QQ:1245773710
  • TPS40009DGQR图
  • 深圳市宏捷佳电子科技有限公司

     该会员已使用本站12年以上
  • TPS40009DGQR
  • 数量12300 
  • 厂家TI/德州仪器 
  • 封装MSOP-10 
  • 批号24+ 
  • ★原装真实库存★13点税!
  • QQ:2353549508QQ:2353549508 复制
    QQ:2885134615QQ:2885134615 复制
  • 0755-83201583 QQ:2353549508QQ:2885134615
  • TPS40009DGQR图
  • 深圳市羿芯诚电子有限公司

     该会员已使用本站7年以上
  • TPS40009DGQR
  • 数量89 
  • 厂家TI/德州仪器 
  • 封装MSOP10 
  • 批号21+ 
  • 羿芯诚只做原装 原厂渠道 价格优势
  • QQ:2881498351QQ:2881498351 复制
  • 0755-22968581 QQ:2881498351
  • TPS40009DGQR图
  • 深圳市和诚半导体有限公司

     该会员已使用本站11年以上
  • TPS40009DGQR
  • 数量5600 
  • 厂家TI 
  • 封装MSOP10 
  • 批号23+ 
  • 只做原装正品,深圳现货
  • QQ:2276916927QQ:2276916927 复制
    QQ:1977615742QQ:1977615742 复制
  • 18929336553 QQ:2276916927QQ:1977615742
  • TPS40009DGQR图
  • 深圳市得捷芯城科技有限公司

     该会员已使用本站11年以上
  • TPS40009DGQR
  • 数量3479 
  • 厂家TI/德州仪器 
  • 封装NA/ 
  • 批号23+ 
  • 原装现货,当天可交货,原型号开票
  • QQ:3007977934QQ:3007977934 复制
    QQ:3007947087QQ:3007947087 复制
  • 0755-82546830 QQ:3007977934QQ:3007947087
  • TPS40009DGQR图
  • 深圳市晶美隆科技有限公司

     该会员已使用本站15年以上
  • TPS40009DGQR
  • 数量65800 
  • 厂家TI/德州仪器 
  • 封装MSOP-10 
  • 批号24+ 
  • 假一罚十,原装进口正品现货供应,价格优势。
  • QQ:198857245QQ:198857245 复制
  • 0755-82865294 QQ:198857245
  • TPS40009DGQR图
  • 集好芯城

     该会员已使用本站13年以上
  • TPS40009DGQR
  • 数量18298 
  • 厂家TI/德州仪器 
  • 封装HVSSOP-10 
  • 批号最新批次 
  • 原装原厂 现货现卖
  • QQ:3008092965QQ:3008092965 复制
    QQ:3008092965QQ:3008092965 复制
  • 0755-83239307 QQ:3008092965QQ:3008092965
  • TPS40009DGQR图
  • 深圳市欧立现代科技有限公司

     该会员已使用本站12年以上
  • TPS40009DGQR
  • 数量5321 
  • 厂家TI 
  • 封装MSOP10 
  • 批号24+ 
  • 全新原装现货,欢迎询购!
  • QQ:1950791264QQ:1950791264 复制
    QQ:221698708QQ:221698708 复制
  • 0755-83222787 QQ:1950791264QQ:221698708
  • TPS40009DGQR图
  • 深圳市华斯顿电子科技有限公司

     该会员已使用本站16年以上
  • TPS40009DGQR
  • 数量12500 
  • 厂家TI/德州仪器 
  • 封装HVSSOP-10 
  • 批号2023+ 
  • 绝对原装正品全新深圳进口现货,优质渠道供应商!
  • QQ:1002316308QQ:1002316308 复制
    QQ:515102657QQ:515102657 复制
  • 美驻深办0755-83777708“进口原装正品专供” QQ:1002316308QQ:515102657
  • TPS40009DGQR图
  • 深圳市晶美隆科技有限公司

     该会员已使用本站14年以上
  • TPS40009DGQR
  • 数量18530 
  • 厂家TI 
  • 封装MSOP10 
  • 批号23+ 
  • 全新原装正品现货热卖
  • QQ:2885348339QQ:2885348339 复制
    QQ:2885348317QQ:2885348317 复制
  • 0755-82519391 QQ:2885348339QQ:2885348317
  • TPS40009DGQR图
  • 深圳市得捷芯城科技有限公司

     该会员已使用本站11年以上
  • TPS40009DGQR
  • 数量7548 
  • 厂家TI(德州仪器) 
  • 封装MSOP10 
  • 批号23+ 
  • 原厂可订货,技术支持,直接渠道。可签保供合同
  • QQ:3007947087QQ:3007947087 复制
    QQ:3007947087QQ:3007947087 复制
  • 0755-83061789 QQ:3007947087QQ:3007947087
  • TPS40009DGQR图
  • 深圳市拓亿芯电子有限公司

     该会员已使用本站12年以上
  • TPS40009DGQR
  • 数量30000 
  • 厂家TI/德州仪器 
  • 封装MSOP10 
  • 批号23+ 
  • 只做原装现货假一罚十
  • QQ:2103443489QQ:2103443489 复制
    QQ:2924695115QQ:2924695115 复制
  • 0755-82702619 QQ:2103443489QQ:2924695115
  • TPS40009DGQR图
  • 深圳市美思瑞电子科技有限公司

     该会员已使用本站12年以上
  • TPS40009DGQR
  • 数量12245 
  • 厂家TI/德州仪器 
  • 封装MSOP10 
  • 批号22+ 
  • 现货,原厂原装假一罚十!
  • QQ:2885659458QQ:2885659458 复制
    QQ:2885657384QQ:2885657384 复制
  • 0755-83952260 QQ:2885659458QQ:2885657384
  • TPS40009DGQR图
  • 深圳市硅诺电子科技有限公司

     该会员已使用本站8年以上
  • TPS40009DGQR
  • 数量50772 
  • 厂家TI 
  • 封装MSOP10 
  • 批号17+ 
  • 原厂指定分销商,有意请来电或QQ洽谈
  • QQ:1091796029QQ:1091796029 复制
    QQ:916896414QQ:916896414 复制
  • 0755-82772151 QQ:1091796029QQ:916896414
  • TPS40009DGQR图
  • 深圳市晶美隆科技有限公司

     该会员已使用本站14年以上
  • TPS40009DGQR
  • 数量16210 
  • 厂家TI 
  • 封装MSOP10 
  • 批号23+ 
  • 全新原装正品现货热卖
  • QQ:2885348317QQ:2885348317 复制
    QQ:2885348339QQ:2885348339 复制
  • 0755-83209630 QQ:2885348317QQ:2885348339
  • TPS40009DGQR图
  • 深圳市西源信息科技有限公司

     该会员已使用本站9年以上
  • TPS40009DGQR
  • 数量8800 
  • 厂家TI/德州仪器 
  • 封装QFN 
  • 批号最新批号 
  • 原装现货零成本有接受价格就出
  • QQ:3533288158QQ:3533288158 复制
    QQ:408391813QQ:408391813 复制
  • 0755-84876394 QQ:3533288158QQ:408391813
  • TPS40009DGQR图
  • 深圳市集创讯科技有限公司

     该会员已使用本站5年以上
  • TPS40009DGQR
  • 数量7500 
  • 厂家TI/德州仪器 
  • 封装HVSSOP-10 
  • 批号24+ 
  • 原装进口正品现货,假一罚十价格优势
  • QQ:2885393494QQ:2885393494 复制
    QQ:2885393495QQ:2885393495 复制
  • 0755-83244680 QQ:2885393494QQ:2885393495
  • TPS40009DGQR图
  • 上海磐岳电子有限公司

     该会员已使用本站11年以上
  • TPS40009DGQR
  • 数量5800 
  • 厂家TI 
  • 封装MSOP10 
  • 批号2024+ 
  • 全新原装现货,杜绝假货。
  • QQ:3003653665QQ:3003653665 复制
    QQ:1325513291QQ:1325513291 复制
  • 021-60341766 QQ:3003653665QQ:1325513291
  • TPS40009DGQR图
  • 深圳市恒益昌科技有限公司

     该会员已使用本站6年以上
  • TPS40009DGQR
  • 数量3000 
  • 厂家TI 
  • 封装MSOP10 
  • 批号23+ 
  • 原装正品长期供货
  • QQ:3336148967QQ:3336148967 复制
    QQ:974337758QQ:974337758 复制
  • 0755-82723761 QQ:3336148967QQ:974337758
  • TPS40009DGQR图
  • 千层芯半导体(深圳)有限公司

     该会员已使用本站9年以上
  • TPS40009DGQR
  • 数量44300 
  • 厂家TI 
  • 封装MSOP10 
  • 批号2019+ 
  • TI一级代理专营品牌绝对进口原装假一赔十
  • QQ:2685694974QQ:2685694974 复制
    QQ:2593109009QQ:2593109009 复制
  • 0755-83978748,0755-23611964,13760152475 QQ:2685694974QQ:2593109009
  • TPS40009DGQR图
  • 深圳市宏世佳电子科技有限公司

     该会员已使用本站13年以上
  • TPS40009DGQR
  • 数量4865 
  • 厂家TI 
  • 封装10-PowerTFSOP,10-MSOP(0.118,3.00mm 宽) 
  • 批号2023+ 
  • 全新原厂原装产品、公司现货销售
  • QQ:2881894393QQ:2881894393 复制
    QQ:2881894392QQ:2881894392 复制
  • 0755- QQ:2881894393QQ:2881894392
  • TPS40009DGQRG4图
  • 深圳市富科达科技有限公司

     该会员已使用本站13年以上
  • TPS40009DGQRG4
  • 数量9450 
  • 厂家TI 
  • 封装MSOP10 
  • 批号2020+ 
  • 全新原装进口现货特价热卖,长期供货
  • QQ:1327510916QQ:1327510916 复制
    QQ:1220223788QQ:1220223788 复制
  • 0755-28767101 QQ:1327510916QQ:1220223788
  • TPS40009DGQR图
  • 深圳市拓亿芯电子有限公司

     该会员已使用本站12年以上
  • TPS40009DGQR
  • 数量30000 
  • 厂家TI/德州仪器 
  • 封装MSOP10 
  • 批号23+ 
  • 全新原装代理现货,假一赔十
  • QQ:1774550803QQ:1774550803 复制
    QQ:2924695115QQ:2924695115 复制
  • 0755-82777855 QQ:1774550803QQ:2924695115
  • TPS40009DGQR图
  • 深圳市正信鑫科技有限公司

     该会员已使用本站12年以上
  • TPS40009DGQR
  • 数量6400 
  • 厂家TI 
  • 封装原厂封装 
  • 批号22+ 
  • 原装正品★真实库存★价格优势★欢迎来电洽谈
  • QQ:1686616797QQ:1686616797 复制
    QQ:2440138151QQ:2440138151 复制
  • 0755-22655674 QQ:1686616797QQ:2440138151
  • TPS40009DGQRG4图
  • 深圳市惊羽科技有限公司

     该会员已使用本站11年以上
  • TPS40009DGQRG4
  • 数量9328 
  • 厂家TI-德州仪器 
  • 封装MSOP-10 
  • 批号▉▉:2年内 
  • ▉▉¥8.2元一有问必回一有长期订货一备货HK仓库
  • QQ:43871025QQ:43871025 复制
  • 131-4700-5145---Q-微-恭-候---有-问-秒-回 QQ:43871025
  • TPS40009DGQR图
  • 深圳市恒达亿科技有限公司

     该会员已使用本站12年以上
  • TPS40009DGQR
  • 数量3000 
  • 厂家TI 
  • 封装MSOP10 
  • 批号23+ 
  • 全新原装公司现货库存!
  • QQ:867789136QQ:867789136 复制
    QQ:1245773710QQ:1245773710 复制
  • 0755-82772189 QQ:867789136QQ:1245773710
  • TPS40009DGQR图
  • 深圳市华芯盛世科技有限公司

     该会员已使用本站13年以上
  • TPS40009DGQR
  • 数量865000 
  • 厂家TI/德州仪器 
  • 封装MSOP-10 
  • 批号最新批号 
  • 一级代理,原装特价现货!
  • QQ:2881475757QQ:2881475757 复制
  • 0755-83225692 QQ:2881475757

产品型号TPS40009DGQR的概述

TPS40009DGQR芯片的概述 TPS40009DGQR是一款由德州仪器(Texas Instruments)公司设计和生产的高效、同步降压DC-DC转换器。这款芯片专门用于提供稳压输出,同时具备过流保护、过热保护等多种安全特性,适合多种电源管理应用。TPS40009主要以其高效能、高功能集成度以及良好的电源质量而受到广泛关注。 TPS40009DGQR的详细参数 TPS40009DGQR的核心参数包括输入电压范围、输出电压范围、输出电流、频率等。具体参数如下: - 输入电压范围:4.5V至15V - 输出电压范围:可调输出,范围从0.8V至5V - 最大输出电流:高达3A - 开关频率:可调,典型值为200kHz至500kHz - 效率:高达95% - 工作温度范围:-40°C至+125°C - 封装类型:HTQFP-32,尺寸为7mm x 7mm 此外,TPS40009还具备多...

产品型号TPS40009DGQR的Datasheet PDF文件预览

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SLUS589B− NOVEMBER 2003 − REVISED FEBRUARY 2005  
FEATURES  
APPLICATIONS  
D
D
D
D
D
D
Operating Input Voltage 2.25 V to 5.5 V  
Output Voltage as Low as 0.7 V  
1% Internal 0.7 V Reference  
D
D
D
D
D
D
Networking Equipment  
Telecom Equipment  
Base Stations  
Servers  
Predictive Gate Drivet N-Channel MOSFET  
Drivers for Higher Efficiency  
DSP Power  
Externally Adjustable Soft-Start and  
Overcurrent Limit  
Power Modules  
DESCRIPTION  
Fixed-Frequency Voltage-Mode Control  
− TPS40007, 300 kHz  
− TPS40009, 600 kHz  
The TPS4000x are controllers for low-voltage,  
non-isolated synchronous buck regulators. These  
controllers drive an N-channel MOSFET for the  
primary buck switch, and an N-channel MOSFET  
for the synchronous rectifier switch, thereby  
achieving very high-efficiency power conversion. In  
addition, the device controls the delays from main  
switch off to rectifier turn-on and from rectifier  
turn-off to main switch turn-on in such a way as to  
minimize diode losses (both conduction and  
recovery) in the synchronous rectifier with TI’s  
proprietary Predictive Gate Drivet technology. The  
reduction in these losses is significant and increases  
efficiency. For a given converter power level, smaller  
FETs can be used, or heat sinking can be reduced  
or even eliminated.  
D
D
Source/Sink with V  
Prebias  
OUT  
10-Lead MSOP PowerPadt Package for  
Higher Performance  
D
Thermal Shutdown  
D
Internal Boostrap Diode  
SIMPLIFIED APPLICATION DIAGRAM  
V
IN  
TPS40007  
TPS40009  
1
2
3
4
ILIM  
BOOT 10  
FB  
HDRV  
9
COMP  
SS/SD  
V
OUT  
SW  
VDD  
8
7
6
5
GND  
LDRV  
UDG−03161  
PowerPADt and Predictive Gate Drivet are trademarks of Texas Instruments Incorporated.  
Copyright 2003, 2004 Texas Instruments Incorporated  
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1
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SLUS589B− NOVEMBER 2003 − REVISED FEBRUARY 2005  
DESCRIPTION (continued)  
The current-limit threshold is adjustable with a single resistor connected to the device. The TPS4000x  
controllers implement a closed-loop soft start function. Startup ramp time is set by a single external capacitor  
connected to the SS/SD pin. The SS/SD pin is also used for shutdown.  
ORDERING INFORMATION  
(1)  
T
FREQUENCY  
300 kHz  
PACKAGED DEVICES MSOP (DGQ)  
A
TPS40007DGQ  
TPS40009DGQ  
−40°C to 85°C  
600 kHz  
(1)  
The DGQ package is available taped and reeled. Add R suffix to device type (e.g.  
TPS40007DGQR) to order quantities of 2,500 devices per reel and 80 units per tube.  
ABSOLUTE MAXIMUM RATINGS  
over operating free-air temperature range unless otherwise noted  
(2)  
TPS4000x  
V + 6.5  
SW  
UNIT  
BOOT  
COMP, FB, ILIM, SS/SD  
SW  
−0.3 to 6.5  
−3 to 10.5  
−5  
Input voltage range, V  
IN  
V
SW (SW transient < 50 ns)  
T
VDD  
6.5  
Operating junction temperature range, T  
−40 to 150  
−55 to 150  
260  
J
Storage temperature, T  
stg  
°C  
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds  
(2)  
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only,  
and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions”  
is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.  
(3)(4)  
DGQ PACKAGE  
(TOP VIEW)  
BOOT  
HDRV  
SW  
ILIM  
FB  
1
2
3
4
5
10  
9
8
7
6
COMP  
SS/SD  
GND  
VDD  
LDRV  
ACTUAL SIZE  
3,05mm x 4,98mm  
(3)  
(4)  
See technical brief SLMA002 for PCB guidelines for PowerPAD packages.  
PowerPADt heat slug should be connected to GND (pin 5).  
2
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SLUS589B− NOVEMBER 2003 − REVISED FEBRUARY 2005  
ELECTRICAL CHARACTERISTICS  
temperature range, T = −40_C to 85_C, V  
= 5.0 V, T = T ; all parameters measured at zero power dissipation  
A
DD  
A
J
(unless otherwise noted)  
PARAMETER  
TEST CONDITIONS  
MIN  
TYP  
MAX  
UNIT  
V
INPUT SUPPLY  
V
DD  
Input voltage range  
High-side gate voltage  
Shutdown current  
Quiescent current  
Switching current  
Minimum on-voltage  
Hysteresis  
2.25  
5.5  
V
V
− V  
6
0.45  
2.0  
HGATE  
BOOT  
SW  
SS/SD = 0 V,  
FB = 0.8 V  
Outputs off  
0.25  
1.4  
1.5  
I
mA  
DD  
No load at HDRV/LDRV  
4.0  
UVLO  
1.95  
80  
2.05  
150  
2.15  
220  
V
mV  
OSCILLATOR  
TPS40007  
TPS40009  
250  
500  
300  
600  
350  
700  
f
Oscillator frequency  
2.25 V V  
DD  
5.00 V  
kHz  
V
OSC  
V
Ramp voltage  
V
− V  
0.80  
0.24  
0.93  
0.31  
1.07  
0.44  
RAMP  
PEAK VALLEY  
Ramp valley voltage  
PWM  
TPS40007  
TPS40009  
87.0%  
83.0%  
94.0%  
93.0%  
(2)  
Maximum duty cycle  
FB = 0 V,  
V
DD  
= 3.3 V  
Minimum duty cycle  
0%  
(1)(3)  
Minimum controllable pulse width  
100  
150  
ns  
ERROR AMPLIFIER  
Line,  
Temperature  
0.690  
0.693  
0.700  
0.700  
30  
0.711  
0.707  
130  
V
FB input voltage  
V
FB  
T
A
= 25°C  
I
FB input bias current  
High-level output voltage  
Low-level output voltage  
Output source current  
Output sink current  
nA  
FB  
V
OH  
V
OL  
FB = 0 V,  
FB =V  
I
I
= 1.0 mA  
= 0.5 mA  
2.0  
2.5  
0.08  
6
OH  
V
,
0.15  
DD  
OL  
I
I
COMP = 0.7 V,  
COMP = 0.7 V,  
FB = GND  
FB = V  
2
3
OH  
mA  
8
OL  
DD  
(1)  
G
Gain bandwidth  
5
10  
MHz  
dB  
BW  
A
OL  
Open loop gain  
55  
85  
SHORT CIRCUIT CURRENT PROTECTION  
I
I
ILIM sink current  
V
V
= 5 V  
11  
9.5  
−20  
2
15  
13.0  
0
19  
16.5  
20  
µA  
µA  
mV  
V
SINK  
DD  
ILIM sink current  
= 2.25 V  
SINK  
DD  
(1)  
V
V
Offset voltage SW vs ILIM  
2.25 V V 5.00  
DD  
OS  
Input voltage range  
VDD  
330  
ILIM  
t
Minimum HDRV pulse time in overcurrent  
SW leading edge blanking pulse in over-  
V
DD  
= 3.3 V  
220  
100  
6
ns  
ON  
ns  
(1)  
current detection  
(1)  
t
Soft-start capacitor cycles as fault timer  
Ensured by design. Not production tested.  
Derate the maximum duty cycle by 3% for V  
SS  
(1)  
(2)  
(3)  
< 3 V  
DD  
Operating at PWM on-times of less than 100 ns could lead to overlap between HDRV and LDRV pulses.  
3
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SLUS589B− NOVEMBER 2003 − REVISED FEBRUARY 2005  
ELECTRICAL CHARACTERISTICS  
temperature range, T = −40_C to 85_C, V  
= 5.0 V, T = T ; all parameters measured at zero power dissipation  
A J  
A
DD  
(unless otherwise noted)  
PARAMETER  
TEST CONDITIONS  
MIN  
TYP  
MAX  
UNIT  
OUTPUT DRIVER  
V
−V = 3.3 V  
BOOT SW ,  
R
R
HDRV pull-up resistance  
3
5.5  
HDHI  
I
= −100 mA  
SOURCE  
V
SINK  
− V  
= 3.3 V  
,
BOOT  
SW  
HDRV pull-down resistance  
1.5  
3
HDLO  
I
= 100 mA  
= 3.3 V,  
R
R
LDRV pull-up resistance  
LDRV pull-down resistance  
LDRV rise time  
V
I
I
= −100 mA  
3
1.0  
15  
10  
15  
10  
5.5  
2.0  
35  
25  
35  
25  
LDHI  
LDLO  
RLD  
DD  
DD  
SOURCE  
= 100 mA  
V
= 3.3 V,  
SINK  
t
t
t
t
LDRV fall time  
FLD  
C
= 1 nF  
ns  
LOAD  
HDRV rise time  
RHD  
FHD  
HDRV fall time  
PREDICTIVE DELAY  
V
Sense threshold to modulate delay time  
Maximum delay modulation range time  
Predictive counter delay time per bit  
Maximum delay modulation range  
Predictive counter delay time per bit  
−350  
70  
mV  
ns  
SWP  
T
LDRV OFF − to − HDRV ON  
LDRV OFF − to − HDRV ON  
HDRV OFF − to − LDRV ON  
HDRV OFF − to − LDRV ON  
45  
95  
6.2  
110  
6.6  
LDHD  
2.8  
50  
4.3  
80  
T
HDLD  
3.0  
4.8  
SHUTDOWN  
V
V
Shutdown threshold voltage  
Outputs OFF  
Outputs OFF  
0.21  
0.25  
0.26  
0.29  
0.31  
0.35  
SD  
V
Device active threshold voltage  
EN  
SOFTSTART  
I
Soft-start source current  
2.0  
3.7  
5.4  
µA  
SS  
V
SS  
Soft-start voltage to begin V  
start  
0.35  
0.65  
0.95  
V
OUT  
BOOTSTRAP  
Bootstrap switch resistance  
PRE-BIAS  
V
V
= 3.3 V  
= 5 V  
50  
35  
100  
70  
DD  
R
BOOT  
DD  
V
OUT  
Recommended VOUT pre-bias level as  
(1)(4)  
FB percent of 700 mV  
90%  
2
% of final regulation  
SW NODE  
Leakage current in shutdown  
THERMAL SHUTDOWN  
Shutdown temperature  
Restart from thermal shutdown  
I
µA  
°C  
SW  
(1)  
t
165  
−15  
SD  
(1)  
(1)  
(2)  
(3)  
(4)  
Ensured by design. Not production tested.  
Derate the maximum duty cycle by 3% for V  
< 3 V.  
DD  
Operating at PWM on-times of less than 100 ns could lead to overlap between HDRV and LDRV pulses.  
Prebiased output greater than 90% of final regulation may lead to sinking current from the prebias output.  
4
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Terminal Functions  
TERMINAL  
I/O  
DESCRIPTION  
NAME  
NO.  
Provides a bootstrapped supply for the topside MOSFET driver, enabling the gate of the topside  
MOSFET to be driven above the input supply rail  
BOOT  
10  
O
COMP  
FB  
3
2
O
I
Output of the error amplifier  
Inverting input of the error amplifier. In normal operation the voltage at this pin is the internal reference level of 700 mV.  
Power supply return for the device. The power stage ground return on the board requires a separate path from other  
sensitive signal ground returns.  
GND  
5
9
This is the gate drive output for the topside N-channel MOSFET. HDRV is bootstrapped to near 2 × V  
for good en-  
DD  
HDRV  
O
hancement of the topside MOSFET.  
A resistor is connected between this pin and VDD to set up the over current threshold voltage. A 15-µA current sink at  
the pin establishes a voltage drop across the external resistor that represents the drain-to-source voltage across the  
top side N-channel MOSFET during an over current condition. The ILIM over current comparator is blanked for the  
first 100 ns to allow full enhancement of the top MOSFET. Set the ILIM voltage level such that it is within 800 mV of  
ILIM  
1
6
I
V
DD  
; that is, (V  
− 0.8) I  
V .  
DD  
ILIM  
DD  
LDRV  
O
Gate drive output for the low-side synchronous rectifier N-channel MOSFET  
Soft-start and overcurrent fault shutdown times are set by charging and discharging a capacitor connected to this pin.  
A closed loop soft-start occurs when the internal 3-µA current source charges the external capacitor. There is a 0.65-V  
offset between external SS pin and internal soft-start voltage at the error amplifier input. This allows the device to be  
SS/SD  
4
I
enabled before starting V  
, thus ensuring that V soft starts smoothly. When the SS/SD voltage is less than 0.25  
OUT  
OUT  
V, the device is shutdown and the HDRV and LDRV are driven low. In normal operation, the capacitor is charged to  
VDD. When a fault condition is asserted, the soft-start capacitor goes through six charge/discharge cycles, restarting  
the converter on the seventh cycle.  
Connect to the switched node on the converter. This pin is used for overcurrent sensing in the topside N-channel  
MOSFET, and level sensing for predictive delay circuit. Overcurrent is determined, when the topside N-channel MOS-  
FET is on, by comparing the voltage on SW with respect to VDD and the voltage on the ILIM with respect to VDD.  
This pin is also used for the return of the topside N-channel MOSFET driver.  
SW  
8
7
O
I
VDD  
Power input for the chip, 5.5-V maximum. Decouple close to the pin with a low-ESR capacitor, 1-µF or larger.  
FUNCTIONAL BLOCK DIAGRAM  
VDD  
VDD  
7
VDD  
THERMAL  
SHUTDOWN  
LDRV  
UVLO  
2 V  
ERROR AMPLIFIER  
PWM COMP  
10 BOOT  
FB  
2
+
+
HI  
0.7 V  
REF  
UVLO  
9
HDRV  
PREDICTIVE  
GATE  
OSC  
CLK  
PWM  
0.65 V  
DRIVE  
PWM  
LOGIC  
COMP  
SS/SD  
3
4
UVLO  
3.7 µA  
(VDD−1.2 V)  
SS ACTIVE  
FAULT  
OC  
8
6
1
SW  
SOFT  
START  
FAULT  
COUNTER  
VDD  
DISCHARGE  
LO  
LDRV  
ILIM  
100 ns DELAY  
EN  
0.26 V  
SHUT DOWN  
GND  
5
CURRENT  
LIMIT COMP  
15 µA  
UDG−03162  
5
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APPLICATION INFORMATION  
The TPS4000x series of synchronous buck controller devices is optimized for high-efficiency dc-to-dc  
conversion in non-isolated distributed power systems. A typical application circuit is shown in Figure 1.  
The TPS40007 and TPS40009 are the controllers of choice for general-purpose synchronous buck designs.  
They are designed to startup into applications where the output voltage is pre-biased, and without having the  
synchronous rectifier interfere with the pre-bias condition. PWM pulses are enabled when the soft-start voltage  
crosses the feedback level dictated by the pre-bias output. Moreover, the pre-biased output ramps up smoothly  
from its pre-bias value and into regulation.  
V
DD  
10 µF  
100 µF  
3.0 V to 5.5 V  
20 kW  
TPS40007  
1
2
3
4
5
10  
9
ILIM  
BOOT  
HDRV  
SW  
Si4866DY  
FB  
IHLP5050CE−01  
V
10 A  
1.8 V  
OUT  
3.6 nF  
7.68 kΩ  
100 nF  
8
COMP  
10 µF  
243 Ω  
470 µF  
100 pF  
7
Si4866DY  
SS/SD VDD  
4.7 nF  
15.7 kΩ  
3.3 nF  
6
GND  
LDRV  
10 kΩ  
UDG−03159  
Figure 1. Typical Application Circuit  
6
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SLUS589B− NOVEMBER 2003 − REVISED FEBRUARY 2005  
APPLICATION INFORMATION  
ERROR AMPLIFIER  
The error amplifier has a bandwidth of greater than 5 MHz, with open loop gain of at least 55 dB. The COMP  
output voltage is clamped to a level above the oscillator ramp in order to improve large-scale transient response.  
OSCILLATOR  
The oscillator uses an internal resistor and capacitor to set the oscillation frequency. The ramp waveform is a  
sawtooth at the PWM frequency with a peak voltage of 1.25 V, and a valley of 0.31 V. The PWM duty cycle is  
limited to a maximum of 94%, allowing the bootstrap capacitor to charge during every cycle.  
BOOTSTRAP/CHARGE PUMP  
There is an internal switch between VDD and BOOT. This switch charges the external bootstrap capacitor for  
the floating supply. If the resistance of this switch is too high for the application, an external schottky diode  
between VDD and BOOT can be used. The peak voltage on the bootstrap capacitor is approximately equal to  
VDD.  
DRIVER  
The HDRV and LDRV MOSFET drivers are capable of driving gate-to-source voltages up to 5.5 V. At V , = 5 V  
IN  
and using appropriate MOSFETs, a 20-A converter can be achieved. The LDRV driver switches between VDD  
and ground, while the HDRV driver is referenced to SW and switches between BOOT and SW.  
SYNCHRONOUS RECTIFICATION AND PREDICTIVE DELAY  
In a normal buck converter, when the main switch turns off, current is flowing to the load in the inductor. This  
current cannot be stopped immediately without using infinite voltage. In order to provide a path for current to  
flow and maintain voltage levels at a safe level, a rectifier or catch device is used. This device can be either a  
conventional diode, or it can be a controlled active device if a control signal is available to drive it. The TPS4000x  
provides a signal to drive an N-channel MOSFET as a rectifier. This control signal is carefully coordinated with  
the drive signal for the main switch so that there is minimum delay from the time that the rectifier MOSFET turns  
off and the main switch turns on, and minimum delay from when the main switch turns off and the rectifier  
MOSFET turns on. This scheme, Predictive Gate Drivet delay, uses information from the current switching  
cycle to adjust the delays that are to be used in the next cycle. Figure 2 shows the switch-node voltage waveform  
for a synchronously rectified buck converter. Illustrated are the relative effects of a fixed-delay drive scheme  
(constant, pre-set delays for the turn-off to turn-on intervals), an adaptive delay drive scheme (variable delays  
based upon voltages sensed on the current switching cycle) and the predictive delay drive scheme.  
Note that the longer the time spent in diode conduction during the rectifier conduction period, the lower the  
efficiency. Also, not described in Figure 2 is the fact that the predictive delay circuit can prevent the body diode  
from becoming forward biased at all. This results in a significant power savings when the main MOSFET turns  
on, and minimizes reverse recovery loss in the body diode of the rectifier MOSFET.  
7
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SLUS589B− NOVEMBER 2003 − REVISED FEBRUARY 2005  
APPLICATION INFORMATION  
GND  
Channel Conduction  
Body Diode Conduction  
Fixed Delay  
Adaptive Delay  
Predictive Delay  
UDG−03166  
Figure 2. Switch Node Waveforms for Synchronous Buck Converter  
SHORT CIRCUIT PROTECTION  
Overcurrent conditions in the TPS4000x are sensed by detecting the voltage across the main MOSFET while  
it is on.  
Basic Description  
If the voltage exceeds a pre-set threshold, the current pulse is terminated, and a counter inside the device is  
incremented. If this counter fills up, a fault condition is declared and the device disables switching for a period  
of time and then attempts to restart the converter with a full soft-start cycle.  
8
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APPLICATION INFORMATION  
Detailed Description  
During each switching cycle, a comparator looks at the voltage across the top side MOSFET while it is on. This  
comparator is enabled after the SW node reaches a voltage greater than (V −1.2 V) followed by a 100-ns  
DD  
blanking time. If the voltage across that MOSFET exceeds the programmed voltage, the current-switching pulse  
is terminated and a 3-bit counter is incremented by one count. If, during the switching cycle, the topside  
MOSFET voltage does not exceed a preset threshold, then this counter is decremented by one count. (The  
counter does not wrap around from 7 to 0 or from 0 to 7). If the counter reaches a full count of 7, the device  
declares that a fault condition exists at the output of the converter. In this fault state, HDRV and LDRV are turned  
off, and the soft-start capacitor is discharged. LDRV is maintained OFF during fault timeout to effectively support  
pre-bias applications. The counter is decremented by one by the soft start capacitor (C ) discharge. When the  
SS  
soft-start capacitor is fully discharged, the discharging circuit is turned off and the capacitor is allowed to charge  
up at the nominal charging rate. When the soft-start capacitor reaches approximately 1.3 V, it is discharged  
again and the overcurrent counter is decremented by one count. The capacitor is charged and discharged, and  
the counter decremented until the count reaches zero (a total of six times). When this happens, the outputs are  
again enabled as the soft-start capacitor generates a reference ramp for the converter to follow while attempting  
to restart.  
During this soft-start interval (whether or not the controller is attempting to do a fault recovery or starting for the  
first time), pulse-by-pulse current limiting is in effect, but overcurrent pulses are not counted to declare a fault  
until the soft-start cycle has been completed. It is possible to have a supply attempt to bring up a short circuit  
for the duration of the soft start period plus seven switching cycles. Power stage designs should take this into  
account if it makes a difference thermally. Figure 3 shows the details of the overcurrent operation.  
(+)  
V
TS  
(−)  
Short Circuit Protection  
Threshold Voltage  
Internal PWM  
V
TS  
0V  
External  
Main Drive  
Normal  
Cycle  
Overcurrent  
Cycle  
UDG−03165  
Figure 3. Short Circuit Operation  
9
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SLUS589B− NOVEMBER 2003 − REVISED FEBRUARY 2005  
APPLICATION INFORMATION  
Figure 4 shows the behavior of key signals during initial startup, during a fault and a successfully fault recovery.  
At time t0, power is applied to the converter. The voltage on the soft-start capacitor (V ) begins to ramp up.  
CSS  
At t1, the soft-start period is completed and the converter is regulating its output at the desired voltage level.  
From t0 to t1, pulse-by-pulse current limiting is in effect, and from t1 onward, overcurrent pulses are counted  
for purposes of determining a possible fault condition. At t2, a heavy overload is applied to the converter. This  
overload is in excess of the overcurrent threshold. The converter starts limiting current and the output voltage  
falls to some level depending on the overload applied. During the period from t2 to t3, the counter is counting  
overcurrent pulses, and at time t3 reaches a full count of 7. The soft-start capacitor is then discharged, the  
counter is decremented, and a fault condition is declared.  
V
DD  
V
CSS  
~ 1.3 V  
~ 0.6 V  
0.6 V  
FAULT  
I
LOAD  
V
OUT  
t
t4  
t0  
t1  
t2 t3  
t5  
t6  
t7  
t8  
t9  
t10  
COUNTER  
0
6
5
4
3
2
1
0
1
2 3 4 5 6 7  
UDG−03160  
Figure 4. Overcurrent/Fault Waveforms  
When the soft start capacitor is fully discharged, it begins charging again at the same rate that it does on startup,  
with a nominal 3.7-µA current source. When the capacitor voltage crosses 1.3 V, it is discharged again and the  
counter is decremented by one count. These transitions occur at t3 through t9. Not shown in Figure 4 is that  
between t3 and t9, LDRV is maintained OFF. At t9, the counter has been decremented to 0. The fault logic is  
then cleared, the outputs are enabled, and the converter attempts to restart with a full soft-start cycle. The  
converter comes into regulation at t10.  
10  
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SLUS589B− NOVEMBER 2003 − REVISED FEBRUARY 2005  
APPLICATION INFORMATION  
SETTING THE CURRENT LIMIT  
Connecting a resistor from VDD to ILIM sets the current limit. A 15-µA current sink internal to the device causes  
a voltage drop at ILIM that becomes the short circuit threshold. Ensure that (V −0.8 V) V V . The  
DD  
ILIM  
DD  
tolerance of the current sink is too loose to do an accurate current limit. The main purpose is for hard fault  
protection of the power switches. Given the tolerance of the ILIM sink current, and the R range for a  
DS(on)  
MOSFET, it is generally possible to apply a load that thermally damages the converter. This device is intended  
for embedded converters where load characteristics are defined and can be controlled.  
A local capacitor (with a value 50 pF to 150 pF) placed across the resistor between VDD and ILIM may improve  
coupling a common mode noise between VDD and ILIM.  
SOFT-START AND SHUTDOWN  
These two functions are combined on the SS/SD pin. There is a VBE offset (0.65-V) between the external SS/SD  
pin and internal soft-start voltage at the error amplifier input, allowing the device to be enabled before starting  
V
as shown in Figure 5. This reduces the transient current required to charge the output capacitor at startup,  
OUT  
and allows for a smooth startup with no overshoot of the output voltage.  
SS/SD  
(200 mV/ div)  
FB  
(200 mV/ div)  
t − Time − 1 ms/div  
Figure 5. Offset Between SS/SD and FB at Startup  
11  
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SLUS589B− NOVEMBER 2003 − REVISED FEBRUARY 2005  
APPLICATION INFORMATION  
A shutdown feature can be implemented as shown in Figure 6. The device shuts down when the voltage at the  
SS/SD pin falls below 260 mV. Because of this limitation, it is recommended that a MOSFET be used as the  
controlling device, as in Figure 6. During shutdown, the total leakage current on the SW pin (I ) is less than  
SW  
2 µA. When V  
is greater than 290 mV, the device is enabled with normal SW active bias currents.  
SS/SD  
TPS40007/9  
3.7 µA  
SS/SD  
ERROR AMPLIFIER  
4
+
+
0.7 V  
FB  
COMP  
SDN  
C
R
SS  
SHUTDOWN  
0.26 V  
+
UDG−01163  
Figure 6. Shutdown Implementation  
Long soft start times may experience extended regions where the PWM pulse width is less than 100 ns. This  
could lead to momentary overlap between HDRV and LDRV. As a result, there is a momentary increase in  
ground or supply noise. It is important to ensure that the ground return of the synchronous rectifier be connected  
directly to the ground return of the input bank of bypass capacitors, in order to minimize ground noise from  
interfering with the controller during soft start. Also, if an external shutdown transistor is used in the application,  
it is important to place a local bypass capacitor between its gate and source on the board in order to minimize  
noise from interfering with the controller during soft-start.  
OUTPUT PRE-BIAS  
The TPS4000x supports pre-biased V  
voltage applications. In cases, where the V  
voltage is held up by  
OUT  
OUT  
a pre-biasing supply while the controller is off, full synchronous rectification is disabled during the initial phase  
of soft starting the V voltage. When the first PWM pulses are detected during soft-start, the controller slowly  
OUT  
activates synchronous rectification by starting the first LDRV pulses with a narrow on-time. It then increments  
that on-time on a cycle-by-cycle basis until it coincides with the time dictated by (1−D), where D is the duty cycle  
of the converter. This scheme prevents the initial sinking the pre-bias output, and ensures that the V  
voltage  
OUT  
starts and ramps up smoothly into regulation. Note, if the V  
voltage is pre-biased, PWM pulses start when  
OUT  
the error amplifier soft-start input voltage rises above the commanded FB voltage.  
Figure 7 depicts the waveforms of the HDRV and LDRV output signals at the beginning PWM pulses. When  
HDRV turns off, diode rectification is enabled. Before the next PWM cycle starts, LDRV is turned on for a short  
pulse. With every cycle, the leading edge of LDRV is modulated, and the on-time of the synchronous rectifier  
is increased. Eventually, the leading edge of LDRV coincides with the falling edge of HDRV to achieve full  
synchronous rectification.  
At most, synchronous rectifier modulation takes place for the first 128 cycles after PWM pulses start. Note that  
during the synchronous rectifier modulation region, the controller monitors pulse skipping. If the main HDRV  
skips a pulse, the controller also skips a LDRV pulse. Pulse skipping could be experienced if the loop response  
is much faster than the commanding soft-start ramp, especially when soft start times are long. The output  
voltage ratchets up as the soft-start ramp catches up to it. Appropriate setting of loop response curbs this effect.  
During normal regulation of the V  
voltage, the controller operates in full two-quadrant source/sink mode.  
OUT  
12  
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SLUS589B− NOVEMBER 2003 − REVISED FEBRUARY 2005  
APPLICATION INFORMATION  
Figure 8 shows startup waveforms of a 1.2-V V  
voltage under different pre-bias scenarios. The first trace  
OUT  
is when the output voltage starts with zero pre−bias. The second and third traces, respectively, the pre-bias  
levels are 0.5 V and 1.0 V.  
V
V
= 5 V  
IN  
= 1.2 V  
OUT  
(200 mV/div)  
PREBIAS = 1 V  
V
HDRV  
PREBIAS = 0.5 V  
PREBIAS = 0 V  
V
LDRV  
t − Time − 2 µs/div  
t − Time − 500 µs/div  
Figure 8.  
Startup Waveforms  
Figure 7.  
MOSFET Drivers at Beginning of Soft-Start  
The recommended V  
voltage pre-bias range is less than or equal to 90% of final regulation. That is, a  
OUT  
pre-bias level between 90% and 100% of final regulation could lead to sinking the pre-bias supply. If the V  
OUT  
voltage is initially set to higher than 100% of final regulation, the controller forces sinking current at the end of  
soft-start in order to bring the output quickly into regulation.  
The following pages include design ideas for a few applications. For more ideas, detailed design information,  
and helpful hints, visit the TPS40000 resources at http://power.ti.com.  
13  
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SLUS589B− NOVEMBER 2003 − REVISED FEBRUARY 2005  
APPLICATION INFORMATION  
V
DD  
3.3 V  
22 µF  
22 µF  
15 kΩ  
TPS40009  
1
2
3
4
5
10  
9
FDS6894A  
ILIM  
BOOT  
HDRV  
SW  
1.0 µH  
FB  
V
1.2 V  
5 A  
OUT  
1 nF  
8.66 kΩ  
1 µF  
COMP  
8
2.2 Ω  
22 µF  
22 µF  
7
SS/SD VDD  
68 pF  
FDS6894A  
4.7 nF  
6
GND  
LDRV  
0.0033 µF  
1 µF  
PWP  
12.1 kΩ  
1 kΩ  
470 pF  
16.9 kΩ  
UDG−03164  
Figure 9. Small-Form Factor Converter for 3.3 V to 1.2 V at 5 A.  
14  
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SLUS589B− NOVEMBER 2003 − REVISED FEBRUARY 2005  
APPLICATION INFORMATION  
UDG−04014  
Figure 10. High-Current Converter for 3.3 V to 1.2 V at 10 A.  
15  
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SLUS589B− NOVEMBER 2003 − REVISED FEBRUARY 2005  
APPLICATION INFORMATION  
VDD  
2.5 V  
BAT54  
22 µF  
22 µF  
15 kΩ  
FDS6894A  
TPS40009  
1 µF  
1
2
3
4
5
10  
9
ILIM  
BOOT  
HDRV  
SW  
VOUT  
1.2 V  
5 A  
1.0 µH  
L1  
FB  
1500 pF  
5.62 kΩ  
COMP  
8
2.2 Ω  
7
SS/SD VDD  
100 pF  
22 µF  
22 µF  
4.7 nF  
FDS6894A  
6
GND  
LDRV  
PWP  
3.3 nF  
1 µF  
6.19 kΩ  
1000 pF  
536 Ω  
8.66 kΩ  
UDG−04028  
Figure 11. Ultra-Low-Input Voltage Converter for 2.5 V to 1.2 V at 5 A  
16  
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SLUS589B− NOVEMBER 2003 − REVISED FEBRUARY 2005  
APPLICATION INFORMATION  
V
IN  
= 3.3 V  
1
2
+
+
C5  
22 µF  
J1 3  
4
C4  
22 µF  
C2  
330 µF  
C3  
22 µF  
C1  
330 µF  
C6  
1 µF  
R2  
16.2 kΩ  
TPS40007DGQ  
Q1  
Si4866DY  
1
2
3
4
5
BOOT 10  
ILIM  
FB  
L1  
1.0 µH  
9
8
7
6
HDRV  
SW  
V
OUT  
= 2.5 V  
10 A  
R4  
5.9 kΩ  
C7  
1.5 nF  
COMP  
SS/SD  
GND  
1
2
R3  
2.2 Ω  
Q2  
Si4866DY  
+
+
VDD  
LDRV  
3
4
J2  
C13  
4.7 nF  
C9  
470 µF  
C8  
470 µF  
C11  
180 pF  
C12  
10n F  
C14  
1 µF  
PWP  
R6  
10 kΩ  
C15  
6.8 nF  
R7  
698 Ω  
R8  
3.92 kΩ  
UDG−03169  
Figure 12. TPS40007EVM−001 Ultra-High-Efficiency Converter for 3.3 V to 2.5 V at 10 A  
17  
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SLUS589B− NOVEMBER 2003 − REVISED FEBRUARY 2005  
APPLICATION INFORMATION  
Layout Considerations  
Successful operation of the TPS4000x controllers is dependent upon proper converter layout and grounding  
techniques. High current returns for the SR MOSFET’s source, and ground connection of the input and output  
capacitors, should be kept on a single ground plane. Bypassing capacitors at the device should return closely  
to the GND (pin 5) of the device. The GND (pin 5) and PowerPADshould connect together at the device and  
return to the main ground plane.  
Proper operation of the Predictive Gate Drivecircuits is dependent upon detecting low-voltage thresholds on  
the SW node. To ensure that the signal at the SW pin accurately represents the voltage at the main switching  
node, the connection from SW (pin 8) to the main switching node of the converter should be kept as short and  
as wide as possible. If the SW trace should traverse multiple board layers between the device and the  
MOSFETs, multiple vias should be used.  
Gate drive outputs, LDRV and HDRV, should be kept as short as possible to minimize inductances of the traces.  
While the controller does not require the usage of external resistors between the driver pins and the gates of  
the MOSFETs, adding small resistors in series with very high gate charge MOSFETs could minimize the effects  
of high frequency ringing.  
The PowerPADpackage provides low thermal impedance for heat removal from the device. The PowerPAD  
derives its name and low thermal impedance from the large bonding pad on the bottom of the device. The circuit  
board must have an area of solder-tinned-copper underneath the package. The dimensions of this area depend  
on the size of the PowerPADpackage (See Thermal Pad Mechanical Data on page 21)  
18  
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ꢀꢁ ꢂ ꢃꢄ ꢄꢄ ꢆ  
SLUS589B− NOVEMBER 2003 − REVISED FEBRUARY 2005  
TYPICAL CHARACTERISTICS  
OSCILLATOR FREQUENCY PERCENT CHANGE  
OSCILLATOR FREQUENCY PERCENT CHANGE  
vs  
vs  
INPUT VOLTAGE  
TEMPERATURE  
6
5
4
3
2
1
0
1
0
−1  
−2  
−3  
−4  
−5  
−6  
2.0  
2.5  
3.0  
3.5  
4.0  
4.5  
5.0  
5.5  
−50  
−25  
0
25  
50  
75  
100 125  
Temperature − °C  
V
IN  
− Input Voltage − V  
Figure 14  
Figure 13  
FEEDBACK VOLTAGE  
vs  
FEEDBACK VOLTAGE  
vs  
INPUT VOLTAGE  
TEMPERATURE  
0.707  
0.705  
0.7010  
0.7005  
0.7000  
0.703  
0.701  
0.699  
0.697  
0.6995  
0.6990  
0.695  
0.693  
2.0  
2.5  
3.0  
3.5  
4.0  
4.5  
5.0  
5.5  
−50  
−25  
0
25  
50  
75  
100  
125  
Temperature − °C  
V
IN  
− Input Voltage − V  
Figure 15  
Figure 16  
19  
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ꢀ ꢁ ꢂ ꢃ ꢄꢄ ꢄ ꢆ  
SLUS589B− NOVEMBER 2003 − REVISED FEBRUARY 2005  
TYPICAL CHARACTERISTICS  
CURRENT LIMIT SINK CURRENT  
CURRENT LIMIT SINK CURRENT  
vs  
vs  
INPUT VOLTAGE  
TEMPERATURE  
16.0  
15.5  
15.5  
15.0  
14.5  
14.0  
13.5  
13.0  
15.0  
14.5  
14.0  
12.5  
−50  
−25  
0
25  
50  
75  
100  
125  
2.0  
2.5  
3.0  
3.5  
4.0  
4.5  
5.0  
5.5  
Temperature − °C  
V
IN  
− Input Voltage − V  
Figure 17  
Figure 18  
SHORT CIRCUIT PROTECTION  
SS/SD Node  
SW Node  
t − Time − 1 ms/div  
Figure 19  
20  
www.ti.com  
PACKAGE OPTION ADDENDUM  
www.ti.com  
22-Apr-2008  
PACKAGING INFORMATION  
Orderable Device  
Status (1)  
Package Package  
Pins Package Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)  
Qty  
Type  
Drawing  
TPS40007DGQ  
ACTIVE  
MSOP-  
Power  
PAD  
DGQ  
10  
10  
10  
10  
10  
10  
10  
10  
80 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
TPS40007DGQG4  
TPS40007DGQR  
TPS40007DGQRG4  
TPS40009DGQ  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
ACTIVE  
MSOP-  
Power  
PAD  
DGQ  
DGQ  
DGQ  
DGQ  
DGQ  
DGQ  
DGQ  
80 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
MSOP-  
Power  
PAD  
2500 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
MSOP-  
Power  
PAD  
2500 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
MSOP-  
Power  
PAD  
80 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
TPS40009DGQG4  
TPS40009DGQR  
TPS40009DGQRG4  
MSOP-  
Power  
PAD  
80 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
MSOP-  
Power  
PAD  
2500 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
MSOP-  
Power  
PAD  
2500 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM  
no Sb/Br)  
(1) The marketing status values are defined as follows:  
ACTIVE: Product device recommended for new designs.  
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.  
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in  
a new design.  
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.  
OBSOLETE: TI has discontinued the production of the device.  
(2)  
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check  
http://www.ti.com/productcontent for the latest availability information and additional product content details.  
TBD: The Pb-Free/Green conversion plan has not been defined.  
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements  
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered  
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.  
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and  
package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS  
compatible) as defined above.  
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame  
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)  
(3)  
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder  
temperature.  
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is  
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the  
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take  
reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on  
incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited  
information may not be available for release.  
Addendum-Page 1  
PACKAGE OPTION ADDENDUM  
www.ti.com  
22-Apr-2008  
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI  
to Customer on an annual basis.  
Addendum-Page 2  
PACKAGE MATERIALS INFORMATION  
www.ti.com  
10-Feb-2012  
TAPE AND REEL INFORMATION  
*All dimensions are nominal  
Device  
Package Package Pins  
Type Drawing  
SPQ  
2500  
2500  
2500  
2500  
Reel  
Reel  
A0  
B0  
K0  
P1  
W
Pin1  
Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant  
(mm) W1 (mm)  
TPS40007DGQR  
TPS40007DGQR  
TPS40009DGQR  
TPS40009DGQR  
MSOP-  
Power  
PAD  
DGQ  
DGQ  
DGQ  
DGQ  
10  
10  
10  
10  
330.0  
330.0  
330.0  
330.0  
12.4  
12.4  
12.4  
12.4  
5.3  
5.3  
5.3  
5.3  
3.4  
3.3  
3.3  
3.4  
1.4  
1.3  
1.3  
1.4  
8.0  
8.0  
8.0  
8.0  
12.0  
12.0  
12.0  
12.0  
Q1  
Q1  
Q1  
Q1  
MSOP-  
Power  
PAD  
MSOP-  
Power  
PAD  
MSOP-  
Power  
PAD  
Pack Materials-Page 1  
PACKAGE MATERIALS INFORMATION  
www.ti.com  
10-Feb-2012  
*All dimensions are nominal  
Device  
Package Type Package Drawing Pins  
SPQ  
Length (mm) Width (mm) Height (mm)  
TPS40007DGQR  
TPS40007DGQR  
TPS40009DGQR  
TPS40009DGQR  
MSOP-PowerPAD  
MSOP-PowerPAD  
MSOP-PowerPAD  
MSOP-PowerPAD  
DGQ  
DGQ  
DGQ  
DGQ  
10  
10  
10  
10  
2500  
2500  
2500  
2500  
364.0  
346.0  
346.0  
364.0  
364.0  
346.0  
346.0  
364.0  
27.0  
35.0  
35.0  
27.0  
Pack Materials-Page 2  
IMPORTANT NOTICE  
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sold subject to TIs terms and conditions of sale supplied at the time of order acknowledgment.  
TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TIs standard  
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配单直通车
TPS40009DGQR产品参数
型号:TPS40009DGQR
Brand Name:Texas Instruments
是否无铅: 不含铅
是否Rohs认证: 符合
生命周期:Active
IHS 制造商:TEXAS INSTRUMENTS INC
零件包装代码:MSOP
包装说明:MSOP-10
针数:10
Reach Compliance Code:compliant
ECCN代码:EAR99
HTS代码:8542.39.00.01
Factory Lead Time:8 weeks
风险等级:0.72
Is Samacsys:N
模拟集成电路 - 其他类型:SWITCHING CONTROLLER
控制模式:VOLTAGE-MODE
控制技术:PULSE WIDTH MODULATION
最大输入电压:5.5 V
最小输入电压:2.25 V
标称输入电压:5 V
JESD-30 代码:S-PDSO-G10
JESD-609代码:e4
长度:3 mm
湿度敏感等级:1
功能数量:1
端子数量:10
最高工作温度:85 °C
最低工作温度:-40 °C
最大输出电流:15 A
最大输出电压:4 V
最小输出电压:0.7 V
封装主体材料:PLASTIC/EPOXY
封装代码:HTSSOP
封装形状:SQUARE
封装形式:SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):260
认证状态:Not Qualified
座面最大高度:1.1 mm
表面贴装:YES
切换器配置:PUSH-PULL
最大切换频率:600 kHz
温度等级:INDUSTRIAL
端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式:GULL WING
端子节距:0.5 mm
端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:3 mm
Base Number Matches:1
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