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TPS61235P

更新时间： 2024-11-16 11:10:43
品牌 Logo 应用领域
德州仪器 - TI 升压转换器
页数 文件大小 规格书
38页 1591K
描述
8A 谷值电流、5.1V 固定输出电压同步升压转换器

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TPS61235P 数据手册

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Sample &  
Buy  
Support &  
Community  
Product  
Folder  
Tools &  
Software  
Technical  
Documents  
TPS61235P, TPS61236P  
SLVSCK4A –SEPTEMBER 2015–REVISED MAY 2016  
TPS6123x 8-A Valley Current Synchronous Boost Converters with Constant Current  
Output Feature  
1 Features  
3 Description  
The TPS6123x is a high current, high efficiency  
synchronous boost converter with constant output  
current feature for single cell Li-Ion and Li-polymer  
battery powered products, in a wide range of power  
bank, tablet, and other portable devices. The IC  
integrates 14-mΩ/14-mΩ power switches and is  
capable of delivering up to a 3.5-A output current for  
3.3-V to 5-V conversion with up to 97% high  
efficiency. The device supports a programmable  
constant output current to control power delivery, so  
to save power path components and lower total  
system thermal dissipation effectively.  
1
•
Up to 97% Efficiency Synchronous Boost  
Up to 3.5-A IOUT for 3.3-V to 5-V Conversion  
10-A 14-mΩ/14-mΩ Internal Power Switches  
Programmable Constant Output Current  
Output Current Monitor  
•
•
•
•
•
•
•
•
10-µA IQ under Light Load Condition  
Boost Status Indication  
True disconnection during shutdown  
Fixed 5.1-V Output Voltage (TPS61235P) or  
Adjustable Output Voltage from 2.9-V to-5.5 V  
(TPS61236P)  
The device only consumes a 10-µA quiescent current  
under a light load condition, and can report load  
status to the system, which make it very suitable for  
Always-On applications. With the TPS6123x, a simple  
and flexible system design can be achieved,  
eliminating external power path components, saving  
PCB space, and reducing BOM cost.  
•
•
1-MHz Switching Frequency  
Softstart, Current Limit, Over Voltage and Over  
Thermal Protections  
•
2.5 mm x 2.5 mm VQFN Package  
2 Applications  
In shutdown, the output is completely disconnected  
from the input, and current consumption is reduced to  
less than 1 µA. Other features like soft start control,  
reverse current blocking, over voltage protection, and  
thermal shutdown protection are built-in for system  
safety.  
•
•
•
•
•
•
Power Banks, Battery Backup Units  
USB Charging Port  
USB Type-C  
Battery Powered USB Hub  
Tablet PCs  
The devices are available in a 2.5-mm x 2.5-mm  
VQFN package.  
Battery Powered Products  
Device Information(1)  
PART NUMBER  
TPS61235P  
PACKAGE  
VQFN (9)  
VQFN (9)  
BODY SIZE (NOM)  
2.50 mm x 2.50 mm  
2.50 mm x 2.50 mm  
TPS61236P  
(1) For all available packages, see the orderable addendum at  
the end of the data sheet.  
SPACING  
TPS61235P Typical Application  
Typical Application Efficiency (TPS61235P)  
L1  
1 mH  
100  
95  
90  
85  
80  
75  
5.1 V  
SW  
VIN  
VOUT  
FB  
VOUT  
Li-Ion  
Battery  
C2  
22 mF x 3  
C1  
10 mF  
ON  
TPS61235P  
EN  
CC  
OFF  
70  
65  
60  
2.7 V Input  
3.3 V Input  
3.6 V Input  
4.2 V Input  
INACT  
0
0.5  
1
1.5  
2
2.5  
3
3.5  
4
4.5  
5
AGND PGND  
Output Current (A)  
D001  
Copyright © 2016, Texas Instruments Incorporated  
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,  
intellectual property matters and other important disclaimers. PRODUCTION DATA.  
 
 
 
 
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TPS61235PRWLR TI

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 		8A 谷值电流、5.1V 固定输出电压同步升压转换器 | RWL | 9 | -40 to
TPS61235PRWLT TI

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 		8A 谷值电流、5.1V 固定输出电压同步升压转换器 | RWL | 9 | -40 to
TPS61235RWLR TI

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 		TPS6123x 8-A Valley Current Synchronous Boost Converters with Constant Current Output Feat
TPS61235RWLT TI

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 		TPS6123x 8-A Valley Current Synchronous Boost Converters with Constant Current Output Feat
TPS61236P TI

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 		8A 谷值电流、可调节输出电压同步升压转换器
TPS61236PRWLR TI

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 		8A 谷值电流、可调节输出电压同步升压转换器 | RWL | 9 | -40 to 85
TPS61236PRWLT TI

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 		8A 谷值电流、可调节输出电压同步升压转换器 | RWL | 9 | -40 to 85
TPS61240 TI

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 		3.5-MHz High Efficiency Step-Up Converter
TPS61240DRV TI

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 		3.5-MHz High Efficiency Step-Up Converter
TPS61240DRVR TI

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 		3.5-MHz High Efficiency Step-Up Converter

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