Datasheet > L387A_03

L387A_03

更新时间： 2024-11-21 03:49:39

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		稳压器
页数	文件大小	规格书
6页	246K
描述
VERY LOW DROP 5V REGULATOR WITH RESET

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L387A_03 数据手册

L387A

VERY LOW DROP 5V REGULATOR WITH RESET

PRECISE OUTPUT VOLTAGE (5 V ± 4 %)

VERY LOW DROPOUT VOLTAGE

OUTPUT CURRENT IN EXCESS OF 500mA

POWER-ON, POWER-OFF INFORMATION

(RESET FUNCTION)

HIGH NOISE IMMUNITY ON RESET DELAY

CAPACITOR

Pentawatt^®

DESCRIPTION

The L387A is a very low drop voltage regulator in

a Pentawatt^®package specially designed to pro-

vide stabilized 5V supplies in consumer and in-

dustrial applications. Thanks to its very low in-

put/output voltage drop this device is very useful

in battery powered equipment, reducing con-

sumption and prolonging battery life. A reset out-

put makes the L387A particularly suitable for mi-

croprocessor systems. This output provides a re-

set signal when power is applied (after an exter-

nal programmable delay) and goes low when

ORDERING NUMBER : L387A

power is removed, inhibiting the microprocessor.

An hysteresis on reset delay capacitor raises the

immunity to the ground noise.

ABSOLUTE MAXIMUM RATINGS

Symbol

V_i

Parameter

Value

Unit

D.C. Input Voltage

Junction and Storage Temperature Range

T_j, T_stg

–55 to 150

°C

APPLICATION CIRCUIT

* Min 33 µF and max. ESR ≤ 3 Ω over temperature range.

1/6

July 2003

12 3 4 5 6

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