Datasheet > LK112XX

LK112XX

更新时间： 2024-09-28 12:50:03

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
17页	407K
描述
Low noise low drop voltage regulator with shutdown function

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中文翻译

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数据手册

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LK112XX 数据手册

LK112xx

Low noise low drop voltage regulator with shutdown function

Features

■ Output current up to 150 mA

■ Low dropout voltage (350 mV at I

= 50 mA)

OUT

■ Very low quiescent current: 0.1 µA in OFF

mode and max. 250 µA in ON mode at

= 0 mA

OUT

■ Low output noise: typ 30 µV at I

= 60 mA

OUT

SOT23-5L

and 10 Hz < f < 80 kHz

■ Wide range of output voltages

■ Internal current and thermal limit

■ Operative input voltage from:

+ 0.5 to 14 V (for V

> 2 V)

OUT

The LK112xx has a very low quiescent current in

or from 2.5 V to 14 V (for V

< 2 V)

OUT

ON MODE while in OFF MODE the I is reduced

down to 100 nA max. The internal thermal

shutdown circuitry limits the junction 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.

Description

The LK112xx 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 output noise level to 30 µVrms. An internal

PNP pass transistor is used to achieve a low

dropout voltage.

Table 1.

Device summary

Part numbers

LK112XX14

LK112XX24

LK112XX25

LK112XX26

LK112XX29

LK112XX31

LK112XX33

LK112XX34

LK112XX35

LK112XX37

LK112XX39

LK112XX41

LK112XX42

LK112XX43

LK112XX44

LK112XX45

LK112XX46

LK112XX48

LK112XX49

LK112XX50

LK112XX60

LK112XX80

LK112XX15

LK112XX18

LK112XX19

LK112XX20

LK112XX22

LK112XX23

July 2008

Rev 15

1/17

www.st.com

12 3 4 5 6 7...17

中文翻译

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