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TPS77918

更新时间： 2024-11-08 22:52:51
品牌 Logo 应用领域
德州仪器 - TI 稳压器
页数 文件大小 规格书
20页 335K
描述
250-mA LDO REGULATOR WITH INTEGRATED RESET IN A MSOP8 PACKAGE

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TPS77918 数据手册

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TPS77901, TPS77918, TPS77925, TPS77930  
250-mA LDO REGULATOR WITH INTEGRATED RESET IN A MSOP8 PACKAGE  
SLVS283A – MARCH 2000 – REVISED MARCH 2000  
TPS779xx  
DGK PACKAGE  
(TOP VIEW)  
Open Drain Power-On Reset With 220-ms  
Delay  
250-mA Low-Dropout Voltage Regulator  
FB/SENSE  
RESET  
EN  
OUT  
OUT  
IN  
1
2
3
4
8
7
6
5
Available in 1.8-V, 2.5-V, 3-V, Fixed Output  
and Adjustable Versions  
Dropout Voltage Typically 200 mV  
at 250 mA (TPS77930)  
GND  
IN  
Ultra Low 92-µA Quiescent Current (Typ)  
8-Pin MSOP (DGK) Package  
Low Noise (55 µV  
Capacitor (TPS77918)  
) With No Bypass  
rms  
TPS77930  
DROPOUT VOLTAGE  
vs  
JUNCTION TEMPERATURE  
2% Tolerance Over Specified Conditions  
For Fixed-Output Versions  
400  
Fast Transient Response  
V = 2.9 V  
I
Thermal Shutdown Protection  
350  
See the TPS773xx and TPS774xx Family of  
Devices for Active Low Enable  
I = 0.25 A  
L
300  
250  
200  
description  
The TPS779xx is a low dropout regulator with  
integrated power-on reset. The device is capable  
of supplying 250 mA of output current with a  
dropout of 200 mV (TPS77930). Quiescent  
current is 92 µA at full load dropping down to 1 µA  
when the device is disabled. The device is  
optimized to be stable with a wide range of output  
capacitors including low ESR ceramic (10 µF) or  
low capacitance (1 µF) tantalum capacitors. The  
device has extremely low noise output perfor-  
I = 0.15 A  
L
150  
100  
I = 0.05 A  
L
50  
0
–50 –30 –10 10  
30  
50  
70  
90 110 130  
T
J
– Junction Temperature – °C  
mance (55 µV ) without using any added filter  
rms  
capacitors. TPS779xx is designed to have a fast  
transient response for larger load current  
changes.  
The TPS779xx is offered in 1.8-V, 2.5-V, and 3-V fixed-voltage versions and in an adjustable version  
(programmable over the range of 1.5 V to 5.5 V). Output voltage tolerance is 2% over line, load, and temperature  
ranges. The TPS779xx family is available in 8-pin MSOP (DGK) packages.  
Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 200 mV  
at an output current of 250 mA for 3.3 volt option) and is directly proportional to the output current. Additionally,  
since the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent  
of output loading (typically 92 µA over the full range of output current, 0 mA to 250 mA). These two key  
specifications yield a significant improvement in operating life for battery-powered systems.  
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  
This document contains information on products in more than one phase  
of development. The status of each device is indicated on the page(s)  
specifying its electrical characteristics.  
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...20

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TPS77925DGKG4 TI

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 		2.5V FIXED POSITIVE LDO REGULATOR, PDSO8, GREEN, PLASTIC, MSOP-8
TPS77930 TI

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 		250-mA LDO REGULATOR WITH INTEGRATED RESET IN A MSOP8 PACKAGE
TPS77930DGK TI

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 		250-mA LDO REGULATOR WITH INTEGRATED RESET IN A MSOP8 PACKAGE

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