L4979D-E

更新时间： 2024-09-16 17:33:15

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		/
页数	文件大小	规格书
22页	475K
描述
Low Drop Voltage Regulator

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中文翻译

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数据手册

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L4979D-E 数据手册

L4979D

L4979MD

Low drop voltage regulator

Datasheet  production data

Features

■ Operating DC supply voltage range 5.6 V to

31 V

■ Low quiescent current (6 µA typ. @ 25 °C with

enable low)

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■ High precision output voltage (2%)

■ Low dropout voltage less than 0.5 V

SO-20

SO-8

■ Reset circuit sensing the output voltage down

to 1 V

Description

■ Programmable reset pulse delay with external

L4979D and L4979MD are low dropout linear

regulators with microprocessor control functions

such as low voltage reset, watchdog, on/off

control. Typical quiescent current is 100 µA in

very low output current mode and enabled

regulator. The devices drop to 6 µA with not

enabled regulators.

capacitor

■ Watchdog

■ Programmable watchdog timer with external

capacitor

■ Thermal shutdown and short circuit protection

■ Automotive temperature range (T = -40 °C to

On chip trimming results in high output voltage

accuracy (2%). Accuracy is kept over wide

temperature range, line and load variation.

150 °C)

■ Enable input for enabling/disabling the voltage

regulator output

The maximum input voltage is 40 V. The max

output current is internally limited. Internal

temperature protection disables the voltage

regulator output.

Table 1.

Package

Device summary

Order codes

Tube

Tape and reel

SO-8

L4979D

L4979D013TR

SO-20

L4979MD

L4979MD013TR

September 2013

Doc ID 10262 Rev 9

1/22

This is information on a product in full production.

www.st.com

12 3 4 5 6 7...22

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