Datasheet > LD2981ABXX40

LD2981ABXX40

更新时间： 2024-11-21 23:45:59

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		稳压器电容器输出元件
页数	文件大小	规格书
17页	416K
描述
VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT LOW ESR OUTPUT CAPACITORS COMPATIBLE

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LD2981ABXX40 数据手册

LD2981

SERIES

ULTRA LOW DROP VOLTAGE REGULATORS WITH INHIBIT

LOW ESR OUTPUT CAPACITORS COMPATIBLE

■

STABLE WITH LOW ESR CERAMIC

CAPACITORS

ULTRA LOW DROPOUT VOLTAGE (0.17V

TYP. AT 100mA LOAD, 7mV TYP. AT 1mA

LOAD)

■

VERY LOW QUIESCENT CURRENT (80µA

TYP. AT NO LOAD IN ON MODE; MAX 1µA

IN OFF MODE)

■

GUARANTEED OUTPUT CURRENT UP TO

100mA

LOGIC-CONTROLLED ELECTRONIC

SHUTDOWN

OUTPUT VOLTAGE OF 1.5; 1.8; 2.5; 2.85;

3.0; 3.2; 3.3; 3.6; 3.8; 4.0; 4.7; 4.85; 5.0V

INTERNAL CURRENT AND THERMAL LIMIT

± 0.75% TOLERANCE OUTPUT VOLTAGE

AVAILABLE (A VERSION)

SOT23-5L

SOT-89

ultra low quiescent current make them suitable for

low noise, low power applications and in battery

powered systems.

■

The quiescent current in sleep mode is less than

1µA when INHIBIT pin is pulled low. Shutdown

Logic Control function is available on pin n.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. The LD2981 is designed to

work with low ESR ceramic capacitor. Typical

applications are in cellular phone, palmtop/laptop

computer, personal digital assistant (PDA),

personal stereo, camcorder and camera.

■

OUTPUT LOW NOISE VOLTAGE 160µVRMS

TEMPERATURE RANGE: -40 TO 125°C

SMALLEST PACKAGE SOT23-5L AND

SOT-89

FAST DYNAMIC RESPONSE TO LINE AND

LOAD CHANGES

■

DESCRIPTION

The LD2981 series are 100mA fixed-output

voltage regulator. The low drop-voltage and the

SCHEMATIC DIAGRAM

September 2003

1/17

12 3 4 5 6 7...17

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