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TPS6734IPE4

更新时间： 2024-09-26 01:10:55
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德州仪器 - TI /
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22页 453K
描述
FIXED 12-V 120-mA BOOST-CONVERTER SUPPLY

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TPS6734IPE4 数据手册

 浏览型号TPS6734IPE4的Datasheet PDF文件第2页浏览型号TPS6734IPE4的Datasheet PDF文件第3页浏览型号TPS6734IPE4的Datasheet PDF文件第4页浏览型号TPS6734IPE4的Datasheet PDF文件第5页浏览型号TPS6734IPE4的Datasheet PDF文件第6页浏览型号TPS6734IPE4的Datasheet PDF文件第7页 
TPS6734I  
FIXED 12-V 120-mA BOOST-CONVERTER SUPPLY  
SLVS127A – AUGUST 1995 – REVISED JANUARY 1999  
D OR P PACKAGE  
(TOP VIEW)  
Pin-for-Pin Compatible With MAX734  
Programming Voltage for Flash Memory  
2.7-V to 11-V Input Operating Range  
EN  
REF  
V
CC  
FB  
1
2
3
4
8
7
6
5
Output Current of 120 mA or Greater From  
3.75-V or Higher Input  
SS  
OUT  
GND  
COMP  
3-µA Maximum Supply Current in  
Shutdown  
Only 5 External Components Required  
High Efficiency . . . 85% Typical (5-V Input,  
120-mA Output)  
8-Pin SOIC and DIP Packages  
–40°C to 85°C Free-Air Operating  
Temperature Range  
description  
The TPS6734 is a fixed 12-V output boost converter capable of delivering 120 mA from inputs as low as  
3.75 V. The device is pin-for-pin compatible with the MAX734 regulator and offers the following advantages:  
lower supply current, wider operating input-voltage range, and higher output currents. As shown in Figure 1,  
the only external components required are: an inductor, a Schottky rectifier, an output filter capacitor, an input  
2
filter capacitor, and a small capacitor for loop compensation. The entire converter occupies less than 0.7 in of  
PCB space when implemented with surface-mount components. An enable input is provided to shut down the  
converter and reduce the supply current to 3 µA when 12 V is not needed.  
TheTPS6734isa170-kHzcurrent-modePWM(pulse-widthmodulation)controllerwithann-channelMOSFET  
power switch. Gate drive for the switch is derived from the 12-V output after start-up to minimize the die area  
needed to realize the 0.7-Ω MOSFET and improve efficiency at input voltages below 5 V. Soft start is  
accomplished with the addition of one small capacitor. A 1.22-V reference (pin 2) is brought out for external use.  
High efficiency at low supply voltages and low supply current in shutdown make the TPS6734 particularly  
attractive for flash memory programming supplies, PCMCIA cards, and operational amplifiers in  
battery-powered equipment. The TPS6734 is available in 8-pin DIP and SOIC packages and operates over a  
free-air temperature range of –40°C to 85°C.  
V
I
3.75 V to 12 V  
TPS6734  
1
2
3
4
8
7
6
5
EN  
V
ENABLE  
CC  
18 µH  
REF  
SS  
FB  
1A, 20 V  
OUT  
+
COMP GND  
33 µF  
V
O
12 V, 120 mA  
0.001 µF  
Figure 1. Typical Operating Circuit  
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 1999, 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...22

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TPS6734IPE4 替代型号

型号 品牌 替代类型 描述 数据表
TPS6734IDRG4 TI

类似代替

 FIXED 12-V 120-mA BOOST-CONVERTER SUPPLY
TPS6734IDR TI

功能相似

 FIXED 12-V 120-mA BOOST-CONVERTER SUPPLY
TPS6734ID TI

功能相似

 FIXED 12-V 120-mA BOOST-CONVERTER SUPPLY

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TPS6735D TI

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TPS6735ID TI

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 		固定负 5V 200MA 反向直流/直流转换器 | D | 8 | -40 to 85
TPS6735IDG4 TI

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 		Fixed Negative 5-V 200-MA Inverting DC/DC Converter 8-SOIC -40 to 85
TPS6735IDR TI

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 		固定负 5V 200MA 反向直流/直流转换器 | D | 8 | -40 to 85
TPS6735IP TI

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 		固定负 5V 200MA 反向直流/直流转换器 | P | 8 | -40 to 85
TPS6735IPE4 TI

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 		固定负 5V 200MA 反向直流/直流转换器 | P | 8 | -40 to 85
TPS6735P TI

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 		FIXED NEGATIVE 5-V 200-mA INVERTING DC/DC CONVERTER
TPS6735Y TI

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 		2A SWITCHING REGULATOR, 160kHz SWITCHING FREQ-MAX, UUC12, DIE-12
TPS6755 TI

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 		ADJUSTABLE INVERTING DC/DC CONVERTER

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