L4949EP datasheet(1/19 Pages) STMICROELECTRONICS

Il numero della parte	L4949EP

Spiegazioni elettronici	Multifunction very low drop voltage regulator

PDF	19 Pages

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Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

Homepage	http://www.st.com

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1 / 19 page

November 2009

Doc ID 4275 Rev 6

1/19

1

L4949E

Multifunction very low drop

voltage regulator

Features

■ 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 L4949E is a monolithic integrated 5V voltage

regulator with a very low dropout output and

additional functions as power-on reset and input

voltage sense. It is designed for supplying the

microcomputer controlled systems especially in

automotive applications.

Table 1.

Device summary

Package

Order codes

Tube

Tape and reel

SO-8

L4949ED

L4949ED013TR

SO-20W

L4949EP

L4949EP013TR

SO-8

SO-20W (12+4+4)

www.st.com

Obsolete

Product(s)

- Obsolete

Product(s)

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