Datasheet > LD2981ABXX

LD2981ABXX

更新时间： 2024-11-22 04:44:59

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		稳压器电容器
页数	文件大小	规格书
23页	430K
描述
Ultra low drop voltage regulators with inhibit low ESR output capacitors compatible

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中文翻译

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LD2981ABXX 数据手册

LD2981ABxx

LD2981Cxx

Ultra low drop voltage regulators with inhibit

low ESR output capacitors compatible

Features

■ Stable with low ESR ceramic capacitors

■ Ultra low dropout voltage (0.17 V typ. at 100

mA load, 7 mV typ. at 1 mA load)

■ Very low quiescent current (80 µA typ. at no

load in on mode; max 1 µA in off mode)

■ Guaranteed output current up to 100mA

■ Logic-controlled electronic shutdown

■ Output voltage of 2.5; 3.0; 3.3; 5.0 V

■ Internal current and thermal limit

SOT23-5L

SOT-89

logic control function is available on pin n° 3 (TTL

compatible). This means that when thedevice is

used as local regulator, it is possible to put a part

of the board in standby, decreasing the total

power consumption. The LD2981AB/C 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.

■

0.75 % tolerance output voltage available (A

version)

■ Output low noise voltage 160 µV

RMS

■ Temperature range: -40 to 125 °C

■ Smallest package SOT23-5L and SOT-89

■ Fast dynamic response to line and load

changes

Description

The LD2981AB/C series are 100 mA fixed-output

voltage regulator. The low drop-voltage and the

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

1 µA when INHIBIT pin is pulled low. Shutdown

Table 1.

Device summary

Part numbers

Output voltage

AB Version

C Version

LD2981ABXX25

LD2981ABXX30

LD2981ABXX33

LD2981ABXX50

LD2981CXX25

LD2981CXX30

LD2981CXX33

LD2981CXX50

2.5 V

3.0 V

3.3 V

5.0 V

July 2008

Rev 14

1/23

www.st.com

12 3 4 5 6 7...23

中文翻译

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与LD2981ABXX相关器件

型号	品牌	获取价格	描述	数据表
LD2981ABXX25	STMICROELECTRONICS	获取价格	VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT LOW ESR OUTPUT CAPACITORS COMPATIBLE
LD2981ABXX28	STMICROELECTRONICS	获取价格	VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT LOW ESR OUTPUT CAPACITORS COMPATIBLE
LD2981ABXX30	STMICROELECTRONICS	获取价格	VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT LOW ESR OUTPUT CAPACITORS COMPATIBLE
LD2981ABXX32	STMICROELECTRONICS	获取价格	VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT LOW ESR OUTPUT CAPACITORS COMPATIBLE
LD2981ABXX33	STMICROELECTRONICS	获取价格	VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT LOW ESR OUTPUT CAPACITORS COMPATIBLE
LD2981ABXX36	STMICROELECTRONICS	获取价格	VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT LOW ESR OUTPUT CAPACITORS COMPATIBLE
LD2981ABXX38	STMICROELECTRONICS	获取价格	VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT LOW ESR OUTPUT CAPACITORS COMPATIBLE
LD2981ABXX40	STMICROELECTRONICS	获取价格	VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT LOW ESR OUTPUT CAPACITORS COMPATIBLE
LD2981ABXX47	STMICROELECTRONICS	获取价格	VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT LOW ESR OUTPUT CAPACITORS COMPATIBLE
LD2981ABXX48	STMICROELECTRONICS	获取价格	VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT LOW ESR OUTPUT CAPACITORS COMPATIBLE

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