L4988D datasheet(1/32 Pages) STMICROELECTRONICS

номер детали	L4988D

подробное описание детали	Automotive low drop voltage regulator

PDF	32 Pages

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производитель	STMICROELECTRONICS [STMicroelectronics]

домашняя страница	http://www.st.com

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1 / 32 page

This is information on a product in full production.

September 2018

DS5334 Rev 8

1/32

L4988

Automotive low drop voltage regulator

Datasheet

- production data

Features

 AEC-Q100 qualified

 Operating DC supply voltage

range 5.6 V to 31 V

 Reset circuit sensing the output voltage down

to 1V

 Programmable reset pulse delay with external

capacitor

 Watchdog

 Programmable watchdog timer with external

capacitor

 Enable input for enabling/disabling the

watchdog functionality

 Thermal shutdown and short circuit protection

 Wide temperature range (Tj = -40°C to 150°C)

Description

The L4988 is a monolithic integrated 5V voltage

regulator with a low drop voltage at currents up to

200mA. The output voltage regulating element

consists in a p-channel MOS and the regulation is

performed regardless of input voltage transients

up to 40V. The high precision of the output

voltage is obtained with a pre-trimmed reference

voltage. The L4988 is protected against short

circuit and an over-temperature protection

switches off the device in case of extremely high

power dissipation. The L4988 is active when the

Enable is high. State of the art features like reset

and watchdog make this device particularly

suitable to supply microprocessor systems in

automotive applications.

Max DC supply voltage

VS

40V

Max output voltage tolerance

∆Vo

+/-2%

Max dropout voltage

Vdp

500 mV

Output current

Io

200 mA

Quiescent current

Iqn

75 µA(1)

1.

Typical value with watchdog disabled.

SO-8

SO-20

Table 1.

Device summary

Package

Order codes

Tube

Tape & reel

SO8

L4988D

L4988DTR

SO20 (16+2+2)

L4988MD

www.st.com

Аналогичный номер детали - L4988D

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