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  • KA7912TU图
  • 深圳市高捷芯城科技有限公司

     该会员已使用本站11年以上
  • KA7912TU 现货库存
  • 数量5098 
  • 厂家onsemi(安森美) 
  • 封装TO-220 
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  • KA7912图
  • 深圳市芯脉实业有限公司

     该会员已使用本站11年以上
  • KA7912 现货库存
  • 数量6980 
  • 厂家FAIRCHILD 
  • 封装TO-220 
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  • KA7912图
  • 深圳市科雨电子有限公司

     该会员已使用本站8年以上
  • KA7912
  • 数量1001 
  • 厂家ON 
  • 封装TO220-3 
  • 批号21+ 
  • ★体验愉快问购元件!!就找我吧!《停产物料》
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  • 171-4755-1968(微信同号) QQ:97877807
  • KA7912图
  • 深圳市芯福林电子有限公司

     该会员已使用本站15年以上
  • KA7912
  • 数量85000 
  • 厂家FAIRCHILD/仙童 
  • 封装16 
  • 批号23+ 
  • 真实库存全新原装正品!代理此型号
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  • KA7912图
  • 深圳市芯福林电子有限公司

     该会员已使用本站15年以上
  • KA7912
  • 数量98500 
  • 厂家FSC 
  • 封装TO-220 
  • 批号23+ 
  • 真实库存全新原装正品!代理此型号
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  • KA7912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
  • KA7912
  • 数量3000 
  • 厂家
  • 封装TOP220 
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  • KA7912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
  • KA7912
  • 数量3000 
  • 厂家
  • 封装TOP220 
  • 批号23+ 
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  • KA7912图
  • 深圳市能元时代电子有限公司

     该会员已使用本站10年以上
  • KA7912
  • 数量23000 
  • 厂家FAIRCHILD 
  • 封装TO220 
  • 批号24+ 
  • 原装现货假一赔十,可含长期供货!
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  • KA7912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
  • KA7912
  • 数量17 
  • 厂家FAIRCHILD/仙童 
  • 封装NA/ 
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  • KA7912A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
  • KA7912A
  • 数量69800 
  • 厂家SEC 
  • 封装TO-220 
  • 批号24+ 
  • 假一罚十,原装进口正品现货供应,价格优势。
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  • KA7912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
  • KA7912
  • 数量18300 
  • 厂家FSC 
  • 封装TO-220 
  • 批号23+ 
  • 全新原装正品现货热卖
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  • KA7912图
  • 集好芯城

     该会员已使用本站13年以上
  • KA7912
  • 数量18106 
  • 厂家FAIRCHILD/仙童 
  • 封装TO220 
  • 批号最新批次 
  • 原装原厂 现货现卖
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  • KA7912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
  • KA7912
  • 数量36244 
  • 厂家FSC 
  • 封装TO-220 
  • 批号17+ 
  • 原厂指定分销商,有意请来电或QQ洽谈
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  • KA7912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
  • KA7912
  • 数量15830 
  • 厂家FAIRCHILD 
  • 封装TO220 
  • 批号23+ 
  • 全新原装正品现货热卖
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    QQ:2885348339QQ:2885348339 复制
  • 0755-83209630 QQ:2885348317QQ:2885348339
  • KA7912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
  • KA7912
  • 数量53266 
  • 厂家FAIRCHILD 
  • 封装TO220 
  • 批号2023+ 
  • 绝对原装正品现货,全新深圳原装进口现货
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  • KA7912ETU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
  • KA7912ETU
  • 数量16485 
  • 厂家FCS 
  • 封装TO-220 
  • 批号2023+ 
  • 绝对原装正品全新进口深圳现货
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  • 美驻深办0755-83777708“进口原装正品专供” QQ:1002316308QQ:515102657
  • KA7912TU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
  • KA7912TU
  • 数量4500 
  • 厂家FSC 
  • 封装TO-220 
  • 批号23+ 
  • 全新原装现货特价销售!
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  • KA7912图
  • 深圳市华科泰电子商行

     该会员已使用本站13年以上
  • KA7912
  • 数量6878 
  • 厂家FAIRCHILD 
  • 封装TO-220 
  • 批号04+ 
  • 绝对原装现货特价
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  • KA7912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
  • KA7912
  • 数量5784 
  • 厂家FSC 
  • 封装TO-220 
  • 批号24+ 
  • 全新原装现货,欢迎询购!
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  • KA7912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
  • KA7912
  • 数量3800 
  • 厂家FAIRCHILD 
  • 封装TO-220-3 
  • 批号24+ 
  • 授权分销 现货热卖
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  • KA7912-TU图
  • 北京首天国际有限公司

     该会员已使用本站16年以上
  • KA7912-TU
  • 数量
  • 厂家FSC 
  • 封装TO-220 
  • 批号16+ 
  • 百分百原装正品,现货库存
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  • KA7912图
  • 北京齐天芯科技有限公司

     该会员已使用本站15年以上
  • KA7912
  • 数量10000 
  • 厂家FAIRCHILD 
  • 封装 
  • 批号16+ 
  • 原装正品,假一罚十
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  • KA7912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
  • KA7912
  • 数量30000 
  • 厂家FAIRCHILD 
  • 封装TO-220 
  • 批号23+ 
  • 代理全新原装现货,价格优势
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  • 0755-82777855 QQ:1774550803QQ:2924695115
  • KA7912图
  • 北京元坤伟业科技有限公司

     该会员已使用本站17年以上
  • KA7912
  • 数量5000 
  • 厂家Fairchild Semiconductor 
  • 封装贴/插片 
  • 批号16+ 
  • 百分百原装正品,现货库存
  • QQ:857273081QQ:857273081 复制
    QQ:1594462451QQ:1594462451 复制
  • 010-62104791 QQ:857273081QQ:1594462451
  • KA7912-TU图
  • 北京齐天芯科技有限公司

     该会员已使用本站15年以上
  • KA7912-TU
  • 数量5000 
  • 厂家FSC 
  • 封装原厂封装 
  • 批号16+ 
  • 原装正品,假一罚十
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  • 010-62104931 QQ:2880824479QQ:1344056792
  • KA7912TU图
  • 深圳市惊羽科技有限公司

     该会员已使用本站11年以上
  • KA7912TU
  • 数量3280 
  • 厂家ON-安森美 
  • 封装车规-电源模块 
  • 批号▉▉:2年内 
  • ▉▉¥10一一有问必回一一有长期订货一备货HK仓库
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  • 131-4700-5145---Q-微-恭-候---有-问-秒-回 QQ:43871025
  • KA7912PI图
  • 北京元坤伟业科技有限公司

     该会员已使用本站17年以上
  • KA7912PI
  • 数量5000 
  • 厂家KEC 
  • 封装T0-220 
  • 批号16+ 
  • 百分百原装正品,现货库存
  • QQ:857273081QQ:857273081 复制
    QQ:1594462451QQ:1594462451 复制
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  • KA7912ATU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
  • KA7912ATU
  • 数量4587 
  • 厂家Fairchild 
  • 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
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  • KA7912图
  • 深圳市中杰盛科技有限公司

     该会员已使用本站14年以上
  • KA7912
  • 数量12000 
  • 厂家Fairchild 
  • 封装TO-220 
  • 批号24+ 
  • 【原装优势★★★绝对有货】
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  • KA7912ETU图
  • 深圳市惊羽科技有限公司

     该会员已使用本站11年以上
  • KA7912ETU
  • 数量57500 
  • 厂家ST-意法半导体 
  • 封装TO-220-3 
  • 批号▉▉:2年内 
  • ▉▉¥10一一有问必回一一有长期订货一备货HK仓库
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  • KA7912ATU图
  • 深圳市惊羽科技有限公司

     该会员已使用本站11年以上
  • KA7912ATU
  • 数量9328 
  • 厂家ON-安森美 
  • 封装TO-220-3 
  • 批号▉▉:2年内 
  • ▉▉¥5.3元一有问必回一有长期订货一备货HK仓库
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  • 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
  • KA7912
  • 数量865000 
  • 厂家FAIRCHILD/仙童 
  • 封装16 
  • 批号最新批号 
  • 一级代理,原装特价现货!
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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
  • KA7912TU
  • 数量5000 
  • 厂家Texas Instruments 
  • 封装贴/插片 
  • 批号16+ 
  • 百分百原装正品,现货库存
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  • 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
  • KA7912TU
  • 数量12245 
  • 厂家FAIRCHILD/仙童 
  • 封装TO220 
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  • 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
  • KA7912ATU
  • 数量12500 
  • 厂家ONS 
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  • 深圳市三得电子有限公司

     该会员已使用本站15年以上
  • KA7912
  • 数量27003 
  • 厂家FAIRCHILD/仙童 
  • 封装TO-220 
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产品型号KA7912的概述

芯片KA7912的概述 KA7912是一款常用的线性稳压电源集成电路,主要用于提供稳定的负12V电压输出。该芯片设计应用于电源管理和分布式电源系统,广泛应用于消费电子、工业设备及通讯设备等领域。KA7912属于KA79xx系列稳压器的一部分,该系列还包含其他不同输出电压规格的稳压器,例如KA7805(5V)、KA7812(+12V)等。随着电子产品对电源的要求日益严格,KA7912凭借其简单的应用电路、较低的成本和可靠的性能,在电子设计中占据了重要地位。 芯片KA7912的详细参数 KA7912是线性稳压器,其主要技术参数如下: - 输出电压:-12V - 输入电压范围:-14V至-30V - 输出电流:最大1.5A - 温度范围:-40°C至+125°C - 功耗:可带载最大为15W(取决于散热条件) - 输出精度:±4% - 过压保护:内置 - 短路保护:内置 - 稳定性:输出电压...

产品型号KA7912的Datasheet PDF文件预览

www.fairchildsemi.com  
KA79XX/KA79XXA  
3-Terminal 1A Negative Voltage Regulator  
Features  
Description  
• Output Current in Excess of 1A  
The KA79XX/KA79XXA series of three-terminal negative  
regulators are available in TO-220 package and with  
several fixed output voltages, making them useful in a wide  
range of applications. Each type employs internal current  
limiting, thermal shutdown and safe operating area  
protection, making it essentially indestructible.  
• Output Voltages of -5, -6, -8, -9, -10, -12, -15, -18 , -24V  
• Internal Thermal Overload Protection  
• Short Circuit Protection  
• Output Transistor Safe Operating Area Compensation  
TO-220  
Vin  
1
1. GND 2. Input 3. Output  
Internal Block Digram  
GND  
R1  
VOLTAGE  
REFERENCE  
R2  
Output  
+
-
Q1  
Q2  
PROTECTION  
CIRCUITRY  
I1  
I2  
Rsc  
Input  
Rev. 1.0.1  
©2002 Fairchild Semiconductor Corporation  
KA79XX/KA79XXA  
Absolute Maximum Ratings  
Parameter  
Symbol  
Value  
-35  
Unit  
V
Input Voltage  
V
I
Thermal Resistance Junction-Case (Note1)  
Thermal Resistance Junction-Air (Note1, 2)  
Operating Temperature Range  
Storage Temperature Range  
Note:  
R
R
5
°C/W  
°C/W  
°C  
θJC  
θJA  
65  
T
OPR  
0 ~ +125  
- 65 ~ +150  
T
STG  
°C  
1. Thermal resistance test board  
Size: 76.2mm * 114.3mm * 1.6mm(1S0P)  
JEDEC standard: JESD51-3, JESD51-7  
2. Assume no ambient airflow  
Electrical Characteristics (KA7905)  
(V = -10V, I = 500mA, 0°C T +125°C, C =2.2µF, C =1µF, unless otherwise specified.)  
I
O
J
I
O
Parameter  
Symbol  
Conditions  
Min. Typ. Max. Unit  
T = +25°C  
J
-4.8 -5.0 -5.2  
Output Voltage  
V
V
O
I
= 5mA to 1A, P 15W  
O ≤  
O
I
-4.75 -5.0 -5.25  
V = -7V to -20V  
V = -7V to -25V  
-
-
35  
8
100  
50  
I
Line Regulation (Note3)  
V  
V  
T = +25°C  
mV  
O
J
V = -8V to -12V  
I
T = +25°C, I = 5mA to 1.5A  
-
10  
3
100  
50  
J
O
Load Regulation (Note3)  
Quiescent Current  
mV  
mA  
mA  
O
T =+25°C, I = 250mA to 750mA  
-
J
O
I
T =+25°C  
J
-
3
6
Q
I
= 5mA to 1A  
-
0.05 0.5  
O
Quiescent Current Change  
I  
Q
V = -8V to -25V  
I
-
0.1  
-0.4  
40  
0.8  
Temperature Coefficient of V Vo/T  
I
= 5mA  
O
-
-
-
-
-
-
-
mV/°C  
µV  
dB  
D
Output Noise Voltage  
Ripple Rejection  
Dropout Voltage  
Short Circuit Current  
Peak Current  
V
f = 10Hz to 100kHz, T = +25°C  
-
N
A
RR  
f = 120Hz, V = 10V  
54  
-
60  
I
V
T =+25°C, I = 1A  
J
2
V
D
O
I
T =+25°C, V = -35V  
-
300  
2.2  
mA  
A
SC  
J
I
I
T =+25°C  
J
-
PK  
Note  
3. Load and line regulation are specified at constant junction temperature. Changes in V due to heating effects must be taken  
O
into account separately. Pulse testing with low duty is used.  
2
KA79XX/KA79XXA  
Electrical Characteristics (KA7906) (Continued)  
(V = -11V, I = 500mA, 0°C T +125°C, C =2.2µF, C = 1µF, unless otherwise specified.)  
I
O
J
I
O
Parameter  
Symbol  
Conditions  
Min.  
Typ.  
Max.  
Unit  
T =+25°C  
J
-5.75  
-6  
-6.25  
Output Voltage  
V
V
O
I
= 5mA to 1A, P 15W  
O
O
I
-5.7  
-6  
-6.3  
V = -9V to -21V  
V = -8V to -25V  
-
-
10  
5
120  
60  
120  
60  
6
I
Line Regulation (Note1)  
V  
V  
T = +25°C  
mV  
O
O
J
V = -9V to -13V  
I
T = +25°C, I = 5mA to 1.5A  
-
10  
3
J
O
Load Regulation (Note1)  
Quiescent Current  
mV  
mA  
mA  
T = +25°C, I = 250mA to 750mA  
-
J
O
I
T = +25°C  
J
-
3
Q
I
= 5mA to 1A  
-
0.05  
0.1  
-0.5  
130  
60  
2
0.5  
1.3  
-
O
Quiescent Current Change  
I  
Q
V = -8V to -25V  
I
-
Temperature Coefficient of V  
Output Noise Voltage  
Ripple Rejection  
Vo/T  
I
= 5mA  
O
-
mV/°C  
µV  
D
V
f = 10Hz to 100kHz, T =+25°C  
-
-
N
A
RR  
f = 120Hz, V = 10V  
54  
-
-
dB  
I
Dropout Voltage  
V
T = +25°C, I = 1A  
-
V
D
J
O
Short Circuit Current  
Peak Current  
I
T = +25°C, V = -35V  
-
300  
2.2  
-
mA  
A
SC  
J
I
I
T = +25°C  
J
-
-
PK  
Note  
1. Load and line regulation are specified at constant junction temperature. Changes in V due to heating effects must be taken  
O
into account separately. Pulse testing with low duty is used.  
3
KA79XX/KA79XXA  
Electrical Characteristics (KA7908) (Continued)  
(V = -14V, I = 500mA, 0°C T +125°C, C =2.2µF, C =1µF, unless otherwise specified.)  
I
O
J
I
O
Parameter  
Symbol  
Conditions  
Min. Typ. Max. Unit  
T =+25°C  
J
-7.7  
-8  
-8.3  
Output Voltage  
V
V
O
I
= 5mA to 1A, P 15W  
O
O
I
-7.6  
-8  
-8.4  
V = -10V to -23V  
V = -10.5V to -25V  
-
-
10  
5
160  
I
Line Regulation (Note1)  
V  
V  
T = +25°C  
mV  
O
O
J
V = -11V to -17V  
I
80  
T = +25°C, I = 5mA to 1.5A  
-
12  
4
160  
J
O
Load Regulation (Note1)  
Quiescent Current  
mV  
mA  
mA  
T = +25°C, I = 250mA to 750mA  
-
80  
J
O
I
T = +25°C  
J
-
3
6
Q
I
= 5mA to 1A  
-
0.05  
0.1  
-0.6  
175  
60  
2
0.5  
O
Quiescent Current Change  
I  
Q
V = -10.5V to -25V  
-
1
-
-
-
-
-
-
I
Temperature Coefficient of V  
Output Noise Voltage  
Ripple Rejection  
Vo/T  
I
= 5mA  
O
-
mV/°C  
µV  
dB  
D
V
f = 10Hz to 100kHz, T = +25°C  
-
N
A
RR  
f = 120Hz, V = 10V  
54  
-
I
Dropout Voltage  
V
T =+25°C, I = 1A  
V
D
J
O
Short Circuit Current  
Peak Current  
I
T =+25°C, V = -35V  
-
300  
2.2  
mA  
A
SC  
J
I
I
T = +25°C  
J
-
PK  
Note  
1. Load and line regulation are specified at constant junction temperature. Changes in V due to heating effects must be taken  
O
into account separately. Pulse testing with low duty is used.  
4
KA79XX/KA79XXA  
Electrical Characteristics (KA7909) (Continued)  
(V = -15V, I = 500mA, 0°C T +125°C, C =2.2µF, C =1µF, unless otherwise specified.)  
I
O
J
I
O
Parameter  
Symbol  
Conditions  
Min. Typ. Max. Unit  
T = +25°C  
J
-8.7  
-9.0  
-9.3  
Output Voltage  
V
V
O
I
= 5mA to 1A, P 15W  
O
O
I
-8.6  
-9.0  
-9.4  
V = -1.5V to -23V  
V = -11.5V to -26V  
-
-
10  
5
180  
I
Line Regulation (Note1)  
V  
V  
T =+25°C  
mV  
O
J
V = -12V to -18V  
I
90  
T =+25°C, I = 5mA to 1.5A  
-
12  
4
180  
J
O
Load Regulation (Note1)  
Quiescent Current  
mV  
mA  
mA  
O
T =+25°C, I = 250mA to 750mA  
-
90  
J
O
I
T = +25°C  
J
-
3
6
Q
I
= 5mA to 1A  
-
0.05  
0.1  
-0.6  
175  
60  
2
0.5  
O
Quiescent Current Change  
I  
Q
V = -11.5V to -26V  
-
1
-
-
-
-
-
-
I
Temperature Coefficient of V  
Output Noise Voltage  
Ripple Rejection  
Vo/T  
I
= 5mA  
O
-
mV/°C  
µV  
D
V
f = 10Hz to 100kHz, T = +25°C  
-
N
A
RR  
f = 120Hz, V = 10V  
54  
-
dB  
I
Dropout Voltage  
V
T = +25°C, I = 1A  
V
D
J
O
Short Circuit Current  
Peak Current  
I
T = +25°C, V = -35V  
-
300  
2.2  
mA  
A
SC  
J
I
I
T = +25°C  
J
-
PK  
Note  
1. Load and line regulation are specified at constant junction temperature. Changes in V due to heating effects must be taken  
O
into account separately. Pulse testing with low duty is used.  
5
KA79XX/KA79XXA  
Electrical Characteristics (KA7910) (Continued)  
(V = -17V, I = 500mA, 0°C T +125°C, C =2.2µF, C =1µF, unless otherwise specified.)  
I
O
J
I
O
Parameter  
Symbol  
Conditions  
Min. Typ. Max. Unit  
T = +25°C  
J
-9.6  
-10 -10.4  
Output Voltage  
V
V
O
I
= 5mA to 1A, P 15W  
O
O
I
-9.5  
-10 -10.5  
V = -12V to -28  
V = -12.5V to -28V  
-
-
12  
6
200  
I
Line Regulation (Note1)  
V  
V  
T = +25°C  
mV  
O
O
J
V = -14V to -20V  
I
100  
T = +25°C, I = 5mA to 1.5A  
-
12  
4
200  
J
O
Load Regulation (Note1)  
Quiescent Current  
mV  
mA  
mA  
T = +25°C, I = 250mA to 750mA  
-
100  
J
O
I
T = +25°C  
J
-
3
6
Q
I
= 5mA to 1A  
-
0.05  
0.1  
-1  
0.5  
O
Quiescent Current Change  
I  
Q
V = -12.5 to -28V  
I
-
1
-
-
-
-
-
-
Temperature Coefficient of V  
Output Noise Voltage  
Ripple Rejection  
Vo/T  
I
= 5mA  
O
-
mV/°C  
µV  
O
V
10Hz f 100kHz, T = +25°C  
-
280  
60  
2
N
A
RR  
f = 120Hz, V = 10V  
54  
-
dB  
I
Dropout Voltage  
V
T = +25°C, I = 1A  
V
D
J
O
Short Circuit Current  
Peak Current  
I
T = +25°C, V = -35V  
-
300  
2.2  
mA  
A
SC  
J
I
I
T = +25°C  
J
-
PK  
Note  
1. Load and line regulation are specified at constant junction temperature. Changes in V due to heating effects must be taken  
O
into account separately. Pulse testing with low duty is used.  
6
KA79XX/KA79XXA  
Electrical Characteristics (KA7912) (Continued)  
(V = -19V, I = 500mA, 0°C T +125°C, C =2.2µF, C =1µF, unless otherwise specified.)  
I
O
J
I
O
Parameter  
Symbol  
Conditions  
Min. Typ. Max.  
Unit  
T = +25°C  
J
-11.5 -12 -12.5  
Output Voltage  
V
V
O
I
= 5mA to 1A, P 15W  
O
O
I
-11.4 -12 -12.6  
V = -15.5V to -27V  
V = -14.5V to -30V  
-
-
12  
6
240  
I
Line Regulation (Note1)  
V  
V  
T = +25°C  
mV  
O
J
V = -16V to -22V  
I
120  
T = +25°C, I = 5mA to 1.5A  
-
12  
4
240  
J
O
Load Regulation (Note1)  
Quiescent Current  
mV  
mA  
mA  
O
T =+25°C, I = 250mA to 750mA  
-
120  
J
O
I
T =+25°C  
J
-
3
6
Q
I
= 5mA to 1A  
-
0.05  
0.1  
-0.8  
200  
60  
2
0.5  
O
Quiescent Current Change  
I  
Q
V = -14.5V to -30V  
-
1
-
-
-
-
-
-
I
Temperature Coefficient of V  
Output Noise Voltage  
Ripple Rejection  
Vo/T  
I
= 5mA  
O
-
mV/°C  
µV  
dB  
D
V
f = 10Hz to 100kHz, T =+25°C  
-
N
A
RR  
f = 120Hz, V = 10V  
54  
-
I
Dropout Voltage  
V
T = +25°C, I = 1A  
V
D
J
O
Short Circuit Current  
Peak Current  
I
T = +25°C, V = -35V  
-
300  
2.2  
mA  
A
SC  
J
I
I
T = +25°C  
J
-
PK  
Note  
1. Load and line regulation are specified at constant junction temperature. Changes in V due to heating effects must be taken  
O
into account separately. Pulse testing with low duty is used.  
7
KA79XX/KA79XXA  
Electrical Characteristics (KA7915) (Continued)  
(V = -23V, I = 500mA, 0°C T +125°C, C =2.2µF, C =1µF, unless otherwise specified.)  
I
O
J
I
O
Parameter  
Symbol  
Conditions  
Min. Typ. Max. Unit  
-14.4 -15 -15.6  
T = +25°C  
J
Output Voltage  
V
V
O
I
= 5mA to 1A, P 15W  
O
O
I
-14.25 -15 -15.75  
V = -18V to -30V  
V = -17.5V to -30V  
-
-
12  
6
300  
I
Line Regulation (Note1)  
V  
V  
T = +25°C  
mV  
O
O
J
V = -20V to -26V  
I
150  
T = +25°C, I = 5mA to 1.5A  
-
12  
4
300  
J
O
Load Regulation (Note1)  
Quiescent Current  
mV  
mA  
mA  
T =+25°C, I = 250mA to 750mA  
-
150  
J
O
I
T =+25°C  
J
-
3
6
Q
I
= 5mA to 1A  
-
0.05  
0.1  
-0.9  
250  
60  
2
0.5  
O
Quiescent Current Change  
I  
Q
V = -17.5V to -30V  
-
1
-
-
-
-
-
-
I
Temperature Coefficient of V  
Output Noise Voltage  
Ripple Rejection  
Vo/T  
I
= 5mA  
O
-
mV/°C  
µV  
D
V
f = 10Hz to 100kHz, T = +25°C  
-
N
A
RR  
f = 120Hz, V = 10V  
54  
-
dB  
I
Dropout Voltage  
V
T = +25°C, I = 1A  
V
D
J
O
Short Circuit Current  
Peak Current  
I
T = +25°C, V = -35V  
-
300  
2.2  
mA  
A
SC  
J
I
I
T = +25°C  
J
-
PK  
Note  
1. Load and line regulation are specified at constant junction temperature. Changes in V due to heating effects must be taken  
O
into account separately. Pulse testing with low duty is used.  
8
KA79XX/KA79XXA  
Electrical Characteristics (KA7918) (Continued)  
(V = -27V, I = 500mA, 0°C T +125°C, C =2.2µF, C =1µF, unless otherwise specified.)  
I
O
J
I
O
Parameter  
Symbol  
Conditions  
Min.  
Typ.  
Max.  
Unit  
T = +25°C  
J
-17.3  
-18  
-18.7  
Output Voltage  
V
V
O
I
= 5mA to 1A, P 15W  
O
O
I
-17.1  
-18  
-18.9  
V = -22.5V to -33V  
V = -21V to -33V  
-
-
15  
8
360  
I
Line Regulation (Note1)  
V  
V  
T = +25°C  
mV  
O
O
J
V = -24V to -30V  
I
180  
T = +25°C, I = 5mA to 1.5A  
-
15  
5
360  
J
O
Load Regulation (Note1)  
Quiescent Current  
mV  
mA  
mA  
T = +25°C, I = 250mA to 750mA  
-
180  
J
O
I
T = +25°C  
J
-
3
6
Q
I
= 5mA to 1A  
-
0.05  
0.1  
-1  
0.5  
O
Quiescent Current Change  
I  
Q
V = -21V to -33V  
-
1
-
-
-
-
-
-
I
Temperature Coefficient of V  
Output Noise Voltage  
Ripple Rejection  
Vo/T  
I
= 5mA  
O
-
mV/°C  
µV  
D
V
f = 10Hz to 100kHz, T = +25°C  
-
300  
60  
2
N
A
RR  
f = 120Hz, V = 10V  
54  
-
dB  
I
Dropout Voltage  
V
T = +25°C, I = 1A  
V
D
J
O
Short Circuit Current  
Peak Current  
I
T = +25°C, V = -35V  
-
300  
2.2  
mA  
A
SC  
J
I
I
T =+25°C  
J
-
PK  
Note  
1. Load and line regulation are specified at constant junction temperature. Changes in V due to heating effects must be taken  
O
into account separately. Pulse testing with low duty is used.  
9
KA79XX/KA79XXA  
Electrical Characteristics (KA7924) (Continued)  
(V = -33V, I = 500mA, 0°C T +125°C, C =2.2µF, C =1µF, unless otherwise specified.)  
I
O
J
I
O
Parameter  
Symbol  
Conditions  
Min. Typ. Max. Unit  
-23 -24 -25  
T = +25°C  
J
Output Voltage  
V
V
O
I
= 5mA to 1A, P 15W  
O
O
I
-22.8 -24 -25.2  
V = -27V to -38V  
V = -27V to -38V  
-
-
15  
8
480  
180  
480  
240  
6
I
Line Regulation (Note1)  
V  
V  
T =+25°C  
mV  
O
J
V = -30V to -36V  
I
T = +25°C, I = 5mA to 1.5A  
-
15  
5
J
O
Load Regulation (Note1)  
Quiescent Current  
mV  
mA  
mA  
O
T = +25°C, I = 250mA to 750mA  
-
J
O
I
T = +25°C  
J
-
3
Q
I
= 5mA to 1A  
-
0.05 0.5  
O
Quiescent Current Change  
I  
Q
V = -27V to -38V  
I
-
0.1  
-1  
1
-
-
-
-
-
-
Temperature Coefficient of V  
Output Noise Voltage  
Ripple Rejection  
Vo/T  
I
= 5mA  
O
-
mV/°C  
µV  
D
V
f = 10Hz to 100kHz, T =+25°C  
-
400  
60  
N
A
RR  
f = 120Hz, V = 10V  
54  
-
dB  
I
Dropout Voltage  
V
T =+25°C, I = 1A  
2
V
D
J
O
Short Circuit Current  
Peak Current  
I
T =+25°C, V = -35V  
-
300  
2.2  
mA  
A
SC  
J
I
I
T =+25°C  
J
-
PK  
Note  
1. Load and line regulation are specified at constant junction temperature. Changes in V due to heating effects must be taken  
O
into account separately. Pulse testing with low duty is used.  
10  
KA79XX/KA79XXA  
Electrical Characteristics (KA7905A) (Continued)  
(V = -10V, I = 500mA, 0°C T +125°C, C =2.2µF, C =1µF, unless otherwise specified.)  
I
O
J
I
O
Parameter  
Symbol  
Conditions  
Min. Typ. Max. Unit  
T = +25°C  
J
-4.9  
-5.0  
-5.1  
Output Voltage  
V
V
O
I
= 5mA to 1A, P 15W  
O
O
I
-4.8  
-5.0  
-5.2  
V = -7V to -20V  
V = -7V to -20V  
I
-
-
5
2
50  
25  
I
= 1A  
O
T = +25°C  
J
V = -8V to -12V  
I
Line Regulation (Note1)  
Load Regulation (Note1)  
V  
V  
mV  
mV  
O
O
I
= 1A  
O
V = -7.5V to -25V  
-
-
7
7
50  
50  
I
V = -8V to -12V, I =1A  
I
O
I
= 5mA to 1.5A  
O
-
10  
100  
T = +25°C  
J
T =+25°C, I = 250mA to 750mA  
-
-
3
3
50  
J
O
Quiescent Current  
I
T =+25°C  
J
6
mA  
mA  
Q
I
= 5mA to 1A  
-
0.05  
0.1  
-0.4  
40  
0.5  
O
Quiescent Current Change  
I  
Q
V = -8V to -25V  
-
0.8  
I
Temperature Coefficient of V  
Output Noise Voltage  
Ripple Rejection  
Vo/T  
I
= 5mA  
O
-
-
-
-
-
-
-
mV/°C  
µV  
dB  
D
V
f = 10Hz to 100kHz, T =+25°C  
-
N
A
RR  
f = 120Hz, V = 10V  
54  
-
60  
I
Dropout Voltage  
V
T = +25°C, I = 1A  
2
V
D
J
O
Short Circuit Current  
Peak Current  
I
T = +25°C, V = -35V  
-
300  
2.2  
mA  
A
SC  
J
I
I
T = +25°C  
-
PK  
J
Note  
1. Load and line regulation are specified at constant junction temperature. Changes in V due to heating effects must be taken  
O
into account separately. Pulse testing with low duty is used.  
11  
KA79XX/KA79XXA  
Electrical Characteristics (KA7912A) (Continued)  
(V = -19V, I = 500mA, 0°C T +125°C, C =2.2µF, C =1µF, unless otherwise specified.)  
I
O
J
I
O
Parameter  
Symbol  
Conditions  
Min. Typ. Max. Unit  
T =+25°C  
-11.75 -12 -12.25  
V
J
Output Voltage  
V
O
I
= 5mA to 1A, P 15W  
O
O
-11.5  
-12  
12  
6
-12.5  
120  
60  
V = -15.5V to -27V  
I
V = -14.5V to -27V  
Io = 1A  
I
-
-
T = +25°C  
J
V = -16V to -22V  
I
Io = 1A  
Line Regulation (Note1)  
V  
V  
mV  
O
O
V = -14.8V to -30V  
-
-
12  
12  
120  
I
V = -16V to -22V, Io = 1A  
I
120  
T =+25°C, I = 5mA to 1.5A  
-
12  
150  
J
O
Load Regulation (Note1)  
Quiescent Current  
mV  
mA  
mA  
T =+25°C, I = 250mA to 750mA  
-
4
75  
J
O
I
T =+25°C  
J
-
3
6
Q
I
= 5mA to 1A  
-
0.05  
0.1  
-0.8  
200  
60  
0.5  
O
Quiescent Current Change  
I  
Q
V = -15V to -30V  
I
-
1
-
-
-
-
-
-
Temperature Coefficient of V  
Output Noise Voltage  
Ripple Rejection  
Vo/T  
I
= 5mA  
O
-
mV/°C  
µV  
D
V
f = 10Hz to 100kHz, T =+25°C  
-
N
A
RR  
f = 120Hz, V = 10V  
54  
-
dB  
I
Dropout Voltage  
V
T =+25°C, I = 1A  
2
V
D
J
O
Short Circuit Current  
Peak Current  
I
T =+25°C, V = -35V  
-
300  
2.2  
mA  
A
SC  
J
I
I
T =+25°C  
J
-
PK  
Note  
1. Load and line regulation are specified at constant junction temperature. Changes in V due to heating effects must be taken  
O
into account separately. Pulse testing with low duty is used.  
12  
KA79XX/KA79XXA  
Electrical Characteristics (KA7915A) (Continued)  
(V = -23V, I = 500mA, 0°C T +125°C, C =2.2µF, C =1µF, unless otherwise specified.)  
I
O
J
I
O
Parameter  
Symbol  
Conditions  
Min. Typ. Max. Unit  
T = +25°C  
J
-14.7 -15 -15.3  
Output Voltage  
V
V
O
I
= 5mA to 1A, P 15W  
O
O
I
-14.4 -15 -15.6  
V = -18V to -30V  
V = -17.5V to -30V  
I
Io = 1A  
-
-
12 150  
75  
T =+25°C  
J
V = -20V to -26V  
I
Io = 1A  
6
Line Regulation (Note1)  
V  
V  
mV  
O
O
V = -17.9V to -30V  
-
-
12 150  
150  
12 150  
I
V = -20V to -26V, Io = 1A  
I
6
T = +25°C, I = 5mA to 1.5A  
-
J
O
Load Regulation (Note1)  
Quiescent Current  
mV  
mA  
mA  
T = +25°C, I = 250mA to 750mA  
-
4
3
75  
6
J
O
I
T =+25°C  
J
-
Q
I
= 5mA to 1A  
-
0.05 0.5  
O
Quiescent Current Change  
I  
Q
V = -18.5V to -30V  
I
-
0.1  
-0.9  
250  
60  
1
-
-
-
-
-
-
Temperature Coefficient of V  
Output Noise Voltage  
Ripple Rejection  
Vo/T  
I
= 5mA  
O
-
mV/°C  
µV  
dB  
D
V
f = 10Hz to 100kHz, T =+25°C  
-
N
A
RR  
f = 120Hz, V = 10V  
54  
-
I
Dropout Voltage  
V
T = +25°C, I = 1A  
2
V
D
J
O
Short Circuit Current  
Peak Current  
I
T =+25°C, V = -35V  
-
300  
2.2  
mA  
A
SC  
J
I
I
T =+25°C  
J
-
PK  
Note  
1. Load and line regulation are specified at constant junction temperature. Changes in V due to heating effects must be taken  
O
into account separately. Pulse testing with low duty is used.  
13  
KA79XX/KA79XXA  
Typical Performance Characteristics  
5. 1  
15  
Vin=10V  
13  
11  
9
Io=1.5A  
Io=40mA  
5. 05  
5
7
4. 95  
4. 9  
5
3
Vin=25V  
1
- 1  
- 3  
- 5  
Io=100mA  
Io=0.75A  
4. 85  
4. 8  
- 40  
- 25  
0
25  
50  
75  
100  
125  
5
- 40  
- 25  
0
25  
50  
75  
100  
125  
TA, Ambient Temperature [ oC]  
TA, Ambient Temperature [oC]  
Figure 1. Output Voltage  
Figure 2. Load Regulation  
4
5
4. 5  
4
3. 5  
3
2. 5  
2
3. 5  
3
2. 5  
2
1. 5  
1
0. 5  
0
1. 5  
1
Io=1A  
0. 5  
0
- 40  
- 25  
0
25  
50  
75  
100  
125  
- 40 - 25  
0
25  
50  
75  
100 125  
TA, Ambient Temperature [oC]  
TA, Ambient Temperature [oC]  
Figure 3. Quiescent Current  
Figure 4. Dropout Voltage  
0. 6  
0. 55  
0. 5  
0. 45  
0. 4  
0. 35  
0. 3  
0. 25  
0. 2  
0. 15  
0. 1  
0. 05  
S
c
t
r
[
0
- 0. 05  
- 0. 1  
- 40  
- 25  
0
25  
50  
75  
100  
125  
o
A
T , Ambient Temperature [ C]  
Figure 5. Short Circuit Current  
14  
KA79XX/KA79XXA  
Typical Applications  
1uF  
2.2uF  
+
+
Co  
C
I
1
2
3
KA79XX  
Input  
Output  
Figure 6. Negative Fixed output regulator  
1
3
+15V  
+12V  
KA7812  
+
+
2
Co  
1N4001  
C1  
0.33uF  
*
*
1uF  
GND  
+
2.2uF  
1uF  
+
1N4001  
C1  
Co  
1
2
3
-12V  
-15V  
KA7912  
Figure 7. Split power supply ( ± 12V/1A)  
Note:  
(1) To specify an output voltage, substitute voltage value for "XX "  
(2) Required for stability. For value given, capacitor must be solid tantalum. If aluminium electronics are used, at least ten times  
value shown should be selected. C is required if regulator is located an appreciable distance from power supply filter.  
I
(3) To improve transient response. If large capacitors are used, a high current diode from input to output (1N400l or similar)  
should be introduced to protect the device from momentary input short circuit.  
15  
KA79XX/KA79XXA  
Mechanical Dimensions  
Package  
Dimensions in millimeters  
TO-220  
4.50 ±0.20  
9.90 ±0.20  
(8.70)  
+0.10  
–0.05  
1.30  
ø3.60 ±0.10  
(45  
°
)
1.27 ±0.10  
1.52 ±0.10  
0.80 ±0.10  
+0.10  
–0.05  
0.50  
2.40 ±0.20  
2.54TYP  
2.54TYP  
[2.54 ±0.20  
]
[2.54 ±0.20]  
10.00 ±0.20  
16  
KA79XX/KA79XXA  
Ordering Information  
Product Number  
KA7905  
Output Voltage Tolerance  
Package  
Operating Temperature  
KA7906  
KA7908  
KA7909  
KA7910  
±4%  
KA7912  
TO-220  
0 ~ +125°C  
KA7915  
KA7918  
KA7924  
KA7905A  
KA7912A  
KA7915A  
±2%  
17  
KA79XX/KA79XXA  
DISCLAIMER  
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY  
PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY  
LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER  
DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.  
LIFE SUPPORT POLICY  
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES  
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR  
CORPORATION. As used herein:  
1. Life support devices or systems are devices or systems  
which, (a) are intended for surgical implant into the body,  
or (b) support or sustain life, and (c) whose failure to  
perform when properly used in accordance with  
instructions for use provided in the labeling, can be  
reasonably expected to result in a significant injury of the  
user.  
2. A critical component in any component of a life support  
device or system whose failure to perform can be  
reasonably expected to cause the failure of the life support  
device or system, or to affect its safety or effectiveness.  
www.fairchildsemi.com  
11/12/02 0.0m 001  
Stock#DSxxxxxxxx  
2002 Fairchild Semiconductor Corporation  
配单直通车
KA7912产品参数
型号:KA7912
是否Rohs认证: 不符合
生命周期:Transferred
包装说明:, SIP3,.1TB
Reach Compliance Code:compliant
ECCN代码:EAR99
HTS代码:8542.39.00.01
风险等级:5.16
可调性:FIXED
标称回动电压 1:3.1 V
最大绝对输入电压:35 V
最大输入电压:30 V
最小输入电压:14.5 V
JESD-30 代码:R-PSFM-T3
JESD-609代码:e0
最大电网调整率:0.24%
最大负载调整率:0.24%
功能数量:1
输出次数:1
端子数量:3
工作温度TJ-Max:125 °C
工作温度TJ-Min:
最大输出电流 1:1.5 A
最大输出电压 1:12.6 V
最小输出电压 1:11.4 V
标称输出电压 1:12 V
封装主体材料:PLASTIC/EPOXY
封装等效代码:SIP3,.1TB
封装形状:RECTANGULAR
封装形式:FLANGE MOUNT
认证状态:Not Qualified
调节器类型:FIXED NEGATIVE SINGLE OUTPUT STANDARD REGULATOR
子类别:Other Regulators
表面贴装:NO
技术:BIPOLAR
端子面层:Tin/Lead (Sn/Pb)
端子形式:THROUGH-HOLE
端子节距:2.54 mm
端子位置:SINGLE
最大电压容差:5%
Base Number Matches:1
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