Datasheet > LK112SXX46

LK112SXX46

更新时间： 2024-11-21 23:46:31

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
11页	429K
描述
LOW NOISE LOW DROP VOLTAGE REGULATOR WITH SHUTDOWN FUNCTION

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LK112SXX46 数据手册

LK112S

SERIES

LOW NOISE LOW DROP VOLTAGE REGULATOR

WITH SHUTDOWN FUNCTION

■

OUTPUT CURRENT UP TO 200mA

LOW DROPOUT VOLTAGE (500mV MAX AT

=200mA)

OUT

■

VERY LOW QUIESCENT CURRENT: 0.1µA

IN OFF MODE AND MAX 250µA IN ON

MODE AT I

=0mA

OUT

LOW OUTPUT NOISE: TYP 30µV AT

=60mA AND 10Hz<f<80KHz

SOT23-5L

OUT

■

WIDE RANGE OF OUTPUT VOLTAGES

INTERNAL CURRENT AND THERMAL LIMIT

TOLERANCE ± 2% (AT 25°C)

OUT

DESCRIPTION

The LK112S is a low dropout linear regulator with

a built in electronic switch. The internal switch can

be controlled by TTL or CMOS logic levels. The

device is ON state when the control pin is pulled to

a logic high level. An external capacitor can be

used connected to the noise bypass pin to lower

The LK112S has a very low quiescent current in

ON MODE while in OFF MODE the Iq is reduced

down to 100nA max. The internal thermal

shutdown circuitry limits the juntion temperature to

below 150°C. The load current is internally

monitored and the device will shutdown in the

presence of a short circuit or overcurrent condition

at the output.

the output noise level to 30µV . An internal PNP

rms

pass transistor is used to achieve a low dropout

voltage.

SCHEMATIC DIAGRAM

February 2003

1/11

12 3 4 5 6 7...11

中文翻译

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