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TPS60500

更新时间： 2024-11-18 22:52:55
品牌 Logo 应用领域
德州仪器 - TI 功效泵
页数 文件大小 规格书
20页 510K
描述
HIGH EFFICIENCY, 250-mA STEP-DOWN CHARGE PUMP

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TPS60500 数据手册

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TPS60500, TPS60501  
TPS60502, TPS60503  
SLVS391B – OCTOBER 2001 – REVISED FEBRUARY 2002  
HIGH EFFICIENCY, 250-mA  
STEP-DOWN CHARGE PUMP  
D
D
D
D
D
D
DSP Core Supply  
FEATURES  
Cellular Phones  
D
Regulated 3.3-V, 1.8-V, 1.5-V, or Adjustable  
Output Voltage  
Portable Instruments  
Internet Audio Player  
PC Peripherals  
D
D
D
D
Up to 250-mA Output Current  
1.8-V to 6.5-V Input Voltage  
Up to 90% Efficiency  
USB Powered Applications  
Output Voltage Tolerance 3% Over Line, Load,  
and Temperature Variation  
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.  
D
Device Quiescent Current Less Than 40 µA  
D
Output Voltage Supervisor Included  
(Power Good)  
D
D
D
D
D
Internal Soft Start  
Load Isolated From Battery During Shutdown  
Overtemperature and Overcurrent Protected  
Micro-Small 10-Pin MSOP Package  
EVM Available, TPS60500EVM-193  
APPLICATIONS  
D
Personal Digital Assistants  
Typical Application Circuit  
TPS60503  
C1F  
1 µF  
C2F  
1 µF  
EFFICIENCY  
vs  
INPUT VOLTAGE  
100  
100 mA  
50 mA  
8
6
3
4
90  
C1F– C1F+ C2F– C2F+  
1.8 V  
150 mA  
80  
70  
7
INPUT  
OUT  
60  
+
Li-ion cell  
5
1
C
150 mA  
o
VIN  
50  
10 µF  
LDO  
C
i
40  
30  
20  
10  
0
TPS60502  
FB  
2.2 µF  
10  
R
EN  
OFF/ON  
2
2
2.5  
3
3.5  
4
4.5  
5
5.5  
6
6.5  
PG  
GND  
V – Input Voltage – V  
I
9
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.  
Copyright 2002, Texas Instruments Incorporated  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
1
www.ti.com  
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