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TPS60120PWPR PDF预览

TPS60120PWPR

更新时间: 2024-11-26 22:49:39
品牌 Logo 应用领域
德州仪器 - TI 转换器功效
页数 文件大小 规格书
27页 559K
描述
REGULATED 3.3 V, 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS

TPS60120PWPR 数据手册

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TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125  
REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP  
DC/DC CONVERTERS  
SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000  
features  
applications  
High Average Efficiency Over Input Voltage  
Range Because of Special Switching  
Topology  
Applications Powered by Two Battery Cells  
Portable Instruments  
Battery-Powered Microprocessor Systems  
Miniature Equipment  
Minimum 200-mA Output Current From an  
Input Voltage Range of 1.8-V to 3.6-V  
Backup-Battery Boost Converters  
PDAs, Organizers, Laptops  
Regulated 3.3-V or 3-V ±4% Output Voltage  
No Inductors Required, Low EMI  
Only Four External Components Required  
55-µA Quiescent Supply Current  
0.05-µA Shutdown Current  
MP-3 Portable Audio Players  
Handheld Instrumentation  
Medical Instruments (e.g., Glucose Meters)  
Cordless Phones  
Load Disconnected in Shutdown  
Integrated Low Battery and Power Good  
Detectors  
efficiency (TPS60120, TPS60121)  
Evaluation Module Available  
(TPS60120EVM-142)  
100  
I
= 66 mA  
O
V
T
= 3.3 V  
= 25°C  
O
C
90  
80  
70  
60  
50  
40  
30  
20  
·
description  
The TPS6012x step-up, regulated charge pumps  
I
= 116 mA  
I
= 164 mA  
O
O
generate a 3.3-V or 3-V ±4% output voltage from  
a 1.8-V to 3.6-V input voltage (two alkaline, NiCd,  
or NiMH batteries). They can deliver an output  
current of at least 200 mA (100 mA for the  
TPS60122 and TPS60123), all from a 2-V input.  
Four external capacitors are needed 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 a 1.5x or doubler  
conversion mode. From a 2-V input, all ICs can  
start with full load current.  
I
O
= 216 mA  
10  
0
1.8  
2
2.2 2.4 2.6 2.8  
3
3.2 3.4 3.6  
V – Input Voltage – V  
I
typical operating circuit  
The devices feature the power-saving pulse-skip  
mode to extend battery life at light loads.  
TPS60120, TPS60122, and TPS60124 include a  
low battery comparator. TPS60121, TPS60123,  
and TPS60125 feature a power-good output. The  
logic shutdown function reduces the supply  
current to a maximum of 1 µA and disconnects the  
load from the input. Special current-control  
circuitry prevents excessive current from being  
drawn from the battery during start-up. This dc/dc  
converter requires no inductors, therefore EMI is  
of low concern. It is available in the small,  
thermally enhanced 20-pin PowerPAD package  
(PWP).  
Input  
1.8 V to 3.6 V  
Output  
3.3 V  
TPS60120  
IN  
IN  
OUT  
OUT  
FB  
C
i
10 µF  
C
O
22 µF  
R1  
R2  
LBI  
R3  
LBO  
C2+  
C1+  
C1  
C2  
2.2 µF  
2.2 µF  
C1–  
C2–  
ENABLE  
PGND GND  
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.  
PowerPAD is a trademark of Texas Instruments Incorporated.  
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  

TPS60120PWPR 替代型号

型号 品牌 替代类型 描述 数据表
TPS60120PWP TI

完全替代

REGULATED 3.3 V, 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS
TPS60120PWPG4 TI

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REGULATED 3.3 V, 200-mA HIGH EFFICIENCY CHARGE PUMP DC/DC CONVERTERS

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