Datasheet > LP2967IMMX-2533

LP2967IMMX-2533

更新时间： 2024-11-22 22:22:51

品牌	Logo	应用领域
美国国家半导体 - NSC		稳压器
页数	文件大小	规格书
17页	610K
描述
Dual Micropower 150 mA Low-Dropout Regulator in micro SMD Package

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LP2967IMMX-2533 数据手册

April 2003

LP2967

Dual Micropower 150 mA Low-Dropout Regulator in

micro SMD Package

General Description

Features

n Ultra low drop-out voltage

The LP2967 is a 150 mA, dual fixed-output voltage regulator

designed to provide ultra low-dropout and low noise in bat-

tery powered applications.

n Guaranteed 150mA output current, 300 mA peak

n Smallest possible size (micro SMD package)

n Requires minimum external components

n Stable with 2.2 µF tantalum or ceramic capacitor

n Output voltage accuracy 1%

Using an optimized VIP (Vertically Integrated PNP) process,

the LP2967 delivers unequalled performance in all specifi-

cations critical to battery powered designs:

Dropout Voltage: Typically 240 mV at 150 mA load, and

6 mV at 1 mA load for each output.

2 µA quiescent current when shut down

n Wide supply voltage range (16V max.)

n Low Z_OUT: 0.3Ω typical (10 Hz to 1 MHz)

n Over temperature/over current protection

n −40˚C to +125˚C junction temperature range

n Custom voltages available

Ground Pin Current: Typically 1 mA at 150 mA load, and

200 µA at 1 mA load for each output.

Enhanced Stability: The LP2967 is stable with output ca-

pacitor ESR as low as 5 mΩ, which allows the use of ceramic

capacitors on the output.

Sleep Mode: Less than 2 µA quiescent current when SD

pins are pulled low.

Applications

n Cellular Phone

Smallest Possible Size: micro SMD package uses absolute

minimum board space.

n Palmtop/Laptop Computer

n Personal Digital Assistance (PDA)

n Camcorder, Personal Stereo and Camera

Precision Output: 1.25% tolerance.

Low Noise: By adding a 100 nF bypass capacitor, output

noise can be reduced to 30 µV (typical).

Multiple voltage options, from 1.8V to 5.0V, are available.

Consult factory for custom voltages.

Block Diagram

10114201

DS101142

www.national.com

12 3 4 5 6 7...17

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