Datasheet > SC1541

SC1541

更新时间： 2024-11-07 04:05:31

品牌	Logo	应用领域
商升特 - SEMTECH		稳压器
页数	文件大小	规格书
6页	168K
描述
1.0A Low Dropout Voltage Regulator with Enable

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SC1541 数据手册

SC1541

1.0A Low Dropout Voltage

Regulator with Enable

POWER MANAGEMENT

Description

Features

The SC1541 is a high performance low dropout positive

voltage regulator designed for use in applications where

power management is critical, such as battery powered

systems.

Low dropout performance, 1.3V max

Full current rating over line and temperature

Fast transient response

+2% total output regulation over line, load

and temperature

10µA max. quiescent current in shutdown

Three fixed output voltages

Line regulation 0.2% max.

Load regulation 0.4% max.

SO-8 and TO-263 packages

Additionally, the SC1541 provides excellent regulation

over variations in line, load and temperature.

Outstanding features include low dropout performance

at rated current, fast transient response, internal

current limiting and thermal shutdown protection of the

output device. A very low quiescent current of 10µA in

shutdown mode reduces power dissipation.

Applications

Low voltage microcontrollers

Switching power supply post-regulation

Instantly available circuits

Motherboards

The SC1541 is available with three different voltage

options as standard and two package options, SO-8 and

5-lead TO-263.

Battery operated equipment

Typical Application Circuit

SC1541

OUT

V_IN

V_OUT

ENABLE SIGNAL

GND

10uF

10uF min.

Tantalum

Notes:

(1) Input and output capacitors should be located close to the device.

(2) Connect all pins to PCB (SO-8 package) for optimal thermal characteristics.

(3) Increasing the output capacitor value will improve the overall transient response.

(4) The device is enabled when V_EN= V_IN, and shut down when EN is pulled to ground. EN should not be taken higher

than V_IN. A CMOS signal referenced to V_INwould be ideal for switching the SC1541 on and off.

Revision: February 11, 2004

www.semtech.com

12 3 4 5 6

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