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TPS60203

更新时间： 2024-09-28 22:52:55
品牌 Logo 应用领域
德州仪器 - TI 转换器泵
页数 文件大小 规格书
20页 436K
描述
REGULATED 3.3 V, 100-mA LOW-RIPPLE CHARGE PUMP LOW POWER DC/DC CONVERTERS

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TPS60203 数据手册

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TPS60200, TPS60201, TPS60202, TPS60203  
REGULATED 3.3 V, 100-mA LOW-RIPPLE CHARGE PUMP  
LOW POWER DC/DC CONVERTERS  
SLVS274 – MARCH 2000  
0.05 µA Shutdown Current, Battery Is  
Isolated From Load in Shutdown Mode  
features  
Regulated 3.3-V Output Voltage With up to  
100 mA Output Current From a 1.8 V to  
3.6 V Input Voltage  
Less Than 5 mV  
Compact Converter Solution in Ultra-Small  
10-pin MSOP With Only Four External  
Capacitors Required  
Output Voltage Ripple  
(PP)  
Evaluation Module Available  
(TPS60200EVM-145)  
Achieved With Push-Pull Topology  
Integrated Low-Battery and Power-Good  
Detector  
applications  
Switching Frequency Can Be Synchronized  
to External Clock Signal  
Replaces DC/DC Converters With Inductors  
in Battery Powered Applications Like:  
– Two Battery Cells to 3.3-V Conversion  
– MP3 Portable Audio Players  
– Battery-Powered Microprocessor  
Systems  
– Backup-Battery Boost Converters  
– PDA’s, Organizers, Cordless Phones  
– Handheld Instrumentation  
Extends Battery Usage With up to 90%  
Efficiency and 35 µA Quiescent Supply  
Current  
Reliable System Shutdown Because Output  
Capacitor Is Discharged When Device Is  
Disabled  
Easy-To-Design, Low Cost, Low EMI Power  
Supply Since No Inductors Are Used  
– Glucose Meters and Other Medical  
Instruments  
·
description  
The TPS6020x step-up, regulated charge pumps generate a 3.3-V ± 4% output voltage from a 1.8-V to 3.6-V  
input voltage. The devices are typically powered by two Alkaline, NiCd or NiMH battery cells and operate down  
to a minimum supply voltage of 1.6 V. Continuous output current is a minimum of 100 mA for the TPS60200 and  
TPS60201 and 50 mA for the TPS60202 and TPS60203, all from a 2-V input. Only four external capacitors are  
needed to build a complete low-ripple dc/dc converter. The push-pull operating mode of two single-ended  
charge pumps assures the low output voltage ripple as current is continuously transferred to the output.  
TPS60200  
OUTPUT  
3.3V, 100 mA  
INPUT  
1.6V to 3.6V  
PEAK OUTPUT CURRENT  
vs  
TPS60200  
5
7
1
IN  
OUT  
INPUT VOLTAGE  
C
o
350  
300  
250  
R1  
R2  
C
i
µ
R3  
µ
2.2  
F
2.2  
F
LBI  
10  
LBO  
Low Battery  
Warning  
4
6
8
C1+  
C2+  
C2–  
C1  
200  
150  
100  
50  
3
9
C2  
µ
1
F
C1–  
EN  
µ
1
F
GND  
2
OFF/ON  
Figure 1. Typical Application Circuit  
With Low-Battery Warning  
0
1.6  
2.0  
2.4  
2.8  
3.2  
3.6  
V – Input Voltage – V  
I
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.  
Copyright 2000, Texas Instruments Incorporated  
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.  
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...20

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