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TPS61140DRCRG4

更新时间： 2024-10-02 04:48:47
品牌 Logo 应用领域
德州仪器 - TI 稳压器电感器输出元件
页数 文件大小 规格书
24页 1493K
描述
DUAL OUTPUT BOOST REGULATOR USING SINGLE INDUCTOR

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TPS61140DRCRG4 数据手册

 浏览型号TPS61140DRCRG4的Datasheet PDF文件第2页浏览型号TPS61140DRCRG4的Datasheet PDF文件第3页浏览型号TPS61140DRCRG4的Datasheet PDF文件第4页浏览型号TPS61140DRCRG4的Datasheet PDF文件第5页浏览型号TPS61140DRCRG4的Datasheet PDF文件第6页浏览型号TPS61140DRCRG4的Datasheet PDF文件第7页 
TPS61140  
TPS61141  
www.ti.com  
SLVS624A–JANUARY 2006–REVISED FEBRUARY 2006  
DUAL OUTPUT BOOST REGULATOR USING SINGLE INDUCTOR  
FEATURES  
DESCRIPTION  
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3V to 6 V Input Voltage Range  
The TPS61140/1 is a dual output boost converter IC.  
It is intended to be configured as a highly integrated  
power solution providing regulated voltage and  
current output with one boost converter. This device  
is ideal for driving the OLED sub display and WLED  
backlight for the LCD main display in clam shell  
phones. The voltage and current can be individually  
programmed through external resistors. There is a  
dedicated selection pin for each output, so the two  
outputs can be turned on separately or  
simultaneously. When only the voltage output is  
enabled, the boost converter is controlled by pulse  
frequency modulation (PFM) in order to achieve high  
efficiency over a wide load range. If the current output  
is selected, the device adopts a 1.2 MHz pulse width  
modulation control (PWM) method in order to  
maximize output current. Applying an external PWM  
signal to the select pin (SELI) reduces the output  
current thereby allowing WLED dimming.  
Two Outputs Each up to 27 V  
0.7 A Integrated Switch  
Built-in Power Diode  
1.2 MHz PWM for WLED Driver  
PFM for OLED Supply  
Individually Programmable Output  
Input to Output Isolation  
Short-Circuit Protection  
Built-in Soft Start  
Overvoltage Protection  
Up to 82% Efficiency  
Up to 30 kHz PWM Dimming Frequency  
Available in a 10 Pin, 3 × 3 mm QFN Package  
APPLICATIONS  
The TPS61140/1 has a built-in power MOSFET and  
power diode; thereby, eliminating the needs for any  
external active power components. In addition, the  
high switching frequency reduces the external  
inductor and capacitor sizes. Overall, the IC provides  
a highly compact solution with high efficiency and  
plenty of flexibility.  
•
Clamshell Phone With OLED/LCD Screen  
TYPICAL APPLICATION  
L1 10 mH  
3 V to 6 V Input  
C1  
4.7 mF  
SW  
Iout  
Vin  
Vout  
GND  
R1  
C3  
SELI  
1 mF  
VFB  
SEL V  
C2  
4.7 mF  
R2  
ISET  
IFB  
R3  
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 © 2006, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
1234567...24

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TPS61140DRCRG4 替代型号

型号 品牌 替代类型 描述 数据表
TPS61140DRCR TI

完全替代

 DUAL OUTPUT BOOST REGULATOR USING SINGLE INDUCTOR
TPS61140DRCT TI

类似代替

 DUAL OUTPUT BOOST REGULATOR USING SINGLE INDUCTOR

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