CD00257532 datasheet(1/19 Pages) STMICROELECTRONICS

部件名	CD00257532

功能描述	Multifunction very low drop voltage regulator

PDF	19 Pages

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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1 / 19 page

November 2009

Doc ID 16823 Rev 1

1/19

1

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

■ Extremely low quiescent current in standby

mode

■ High precision standby output voltage 5V±1%

■ Output current capability up to 100mA

■ Very low dropout voltage less than 0.5V

■ Reset circuit sensing the output voltage

■ Programmable reset pulse delay with external

capacitor

■ Voltage sense comparator

■ Thermal shutdown and short circuit protections

Description

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.

SO-8

SO-20W (12+4+4)

Table 1.

Device summary

Package

Order codes

Tube

Tape and reel

SO-8

L4949ED-E

L4949EDTR-E

SO-20W

L4949EP-E

L4949EPTR-E

www.st.com

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