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TPS60500DGSR 参数 Datasheet PDF下载

TPS60500DGSR图片预览
型号: TPS60500DGSR
PDF下载: 下载PDF文件 查看货源
内容描述: 高效率, 250 mA的降压充电泵 [HIGH EFFICIENCY, 250-mA STEP-DOWN CHARGE PUMP]
分类和应用: 功效
文件页数/大小: 24 页 / 1124 K
品牌: TI [ TEXAS INSTRUMENTS ]
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TPS60500, TPS60501
TPS60502, TPS60503
SLVS391B − OCTOBER 2001 − REVISED FEBRUARY 2002
HIGH EFFICIENCY, 250 mA
STEP DOWN CHARGE PUMP
FEATURES
D
Regulated 3.3-V, 1.8-V, 1.5-V, or Adjustable
D
D
D
D
D
D
D
D
D
D
D
Output Voltage
Up to 250-mA Output Current
1.8-V to 6.5-V Input Voltage
Up to 90% Efficiency
Output Voltage Tolerance 3% Over Line, Load,
and Temperature Variation
Device Quiescent Current Less Than 40
µA
Output Voltage Supervisor Included
(Power Good)
Internal Soft Start
Load Isolated From Battery During Shutdown
Overtemperature and Overcurrent Protected
Micro-Small 10-Pin MSOP Package
EVM Available, TPS60500EVM-193
D
D
D
D
D
D
DSP Core Supply
Cellular Phones
Portable Instruments
Internet Audio Player
PC Peripherals
USB Powered Applications
DESCRIPTION
The TPS6050x devices are a family of step-down
charge pumps that generate a regulated, fixed 3.3-V,
1.8-V, 1.5-V, or adjustable output voltage. Only four
small ceramic capacitors are required to build a
complete high efficiency dc/dc charge pump converter.
To achieve the high efficiency over a wide input voltage
range, the charge pump automatically selects between
three different conversion modes. The output can
deliver a maximum of 250-mA output current. The
power good function supervises the output voltage and
goes high when the output voltage rises to 97% of its
nominal value.
APPLICATIONS
D
Personal Digital Assistants
Typical Application Circuit
TPS60503
C1F
1
µF
C2F
1
µF
100
100 mA
EFFICIENCY
vs
INPUT VOLTAGE
90
50 mA
8
6
3
4
7
1.8 V
150 mA
+ C
o
10
µF
Efficiency − %
C1F− C1F+ C2F− C2F+
80
70
60
150 mA
50
40
30
LDO
INPUT
Li-ion cell
Ci
2.2
µF
OUT
5
VIN
TPS60502
FB
1
EN
PG
GND
9
10
R
2
20
10
0
2
2.5
3
3.5
4
4.5
5
5.5
6
6.5
VI − Input Voltage − V
OFF/ON
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright
2002, Texas Instruments Incorporated
www.ti.com
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