Datasheet > CD00257532

CD00257532

更新时间： 2024-09-29 12:55:47

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		/
页数	文件大小	规格书
19页	475K
描述
Application information

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数据手册

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CD00257532 数据手册

L4949ED-E

L4949EP-E

Multifunction very low drop

voltage regulator

Features

■ ECOPACK : lead free and RoHS compliant

■ Automotive Grade: compliance with AEC

guidelines

■ Operating DC supply voltage range 5 V - 28 V

■ Transient supply voltage up to 40V

SO-8

SO-20W (12+4+4)

■ Extremely low quiescent current in standby

mode

Description

■ High precision standby output voltage 5V 1ꢀ

■ Output current capability up to 100mA

■ Very low dropout voltage less than 0.5V

■ Reset circuit sensing the output voltage

The L4949ED-E and L4949EP-E are monolithic

integrated 5V voltage regulators with a very low

dropout output and additional functions as power-

on reset and input voltage sense. They are

designed for supplying the microcomputer

controlled systems especially in automotive

applications.

■ Programmable reset pulse delay with external

capacitor

■ Voltage sense comparator

■ Thermal shutdown and short circuit protections

Table 1.

Device summary

Package

Order codes

Tape and reel

Tube

SO-8

L4949ED-E

L4949EP-E

L4949EDTR-E

L4949EPTR-E

SO-20W

November 2009

Doc ID 16823 Rev 1

1/19

www.st.com

12 3 4 5 6 7...19

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