Datasheet > LD2982BM28R

LD2982BM28R

更新时间： 2024-11-21 22:51:59

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		调节器
页数	文件大小	规格书
13页	298K
描述
VERY LOW DROP AND LOW NOISE VOLTAGE REGULATOR WITH INHIBIT FUNCTION, LOW ESR CAP. COMPATIBLE

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LD2982BM28R 数据手册

LD2982

SERIES

VERY LOW DROP AND LOW NOISE VOLTAGE REGULATOR

WITH INHIBIT FUNCTION, LOW ESR CAP. COMPATIBLE

■

VERY LOW DROPOUT VOLTAGE (120mV

AT 50mA AND 7mV AT 1mA LOAD)

VERY LOW QUIESCENT CURRENT (375µA

TYP. AT 50mA LOAD AND 75µA AT 1mA)

OUTPUT CURRENT UP TO 50mA

LOGIC CONTROLLED ELECTRONIC

SHUTDOWN

■

OUTPUT VOLTAGE OF 1.5,1.8, 2.5, 2.8, 2.85,

3, 3.1, 3.2, 3.3, 3.5, 3.6, 3.8, 4, 4.7, 5V

INTERNAL CURRENT AND THERMAL LIMIT

AVAILABLE IN ± 1% TOLLERANCE (AT 25°C,

A VERSION)

SOT23-5L

■

SUPPLY VOLTAGE REJECTION: 45dB (TYP)

ONLY 1µF FOR STABILITY

LOW OUTPUT NOISE VOLTAGE 30µVrms

SMALLEST PACKAGE SOT23-5L

TEMPERATURE RANGE: -40°C TO 125°C

pin is pulled low. Shutdown Logic Control Function

is available on pin 3 (TTL compatible). This means

that when the device is used as local regulator, it

is possible to put a part of the board in standby,

decreasing the total power consumption.

DESCRIPTION

An external capacitor

=10nF connected

BYP

The LD2982 is a 50mA fixed output voltage

regulator. The ultra low drop voltage and the low

quiescent current make them particularly suitable

for low noise, low power applications, and in

battery powered systems. In sleep mode

quiescent current is less than 1µA when INHIBIT

between bypass pin and GND reduce the noise

to 30µVrms.

Typical application are in cellular phone, palmtop/

laptop computer, personal digital assistant (PDA),

personal stereo, camcorder and camera.

SCHEMATIC DIAGRAM

July 2003

1/13

12 3 4 5 6 7...13

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