L4938EPD datasheet(1/20 Pages) STMICROELECTRONICS

部件名	L4938EPD

功能描述	Advanced voltage regulator

PDF	20 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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1 / 20 page

September 2013

Doc ID 17243 Rev 2

1/20

1

L4938ED

L4938EPD

Advanced voltage regulator

Features

■

Enable and sense inputs (EN, SI) protected

against negative transients down to -5 V

■

Reset threshold adjustable from 3.8 V to 4.7 V

■

Extremely low quiescent current, 65 µA (less

than 90 µA) in standby mode

■

Operating DC supply voltage range 5 V - 28 V

■

Operating transient supply voltage up to 40 V

■

High precision standby output voltage 5 V ± 1%

with 100 mA current capability

■

Output 2 voltage 5 V ± 2% with 400 mA current

capability (ADJ wired to VOUT2)

■

Output 2 voltage adjustable by external voltage

divider

■

Output 2 disable function for standby mode

Description

The L4938ED and L4938EPD are monolithic

integrated dual voltage regulators with two very

low dropout outputs and additional functions such

as power-on reset and input voltage sense. They

are designed for supplying microcomputer

controlled systems especially in automotive

applications.

Table 1.

Device summary

Package

Order codes

Tube

Tape and reel

SO-20

L4938ED

L4938ED013TR

PowerSO-20

L4938EPD

L4938EPD13TR

PowerSO-20

SO-20

www.st.com

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