POWER MANAGEMENT



Very Low Input /Very Low Dropout

3 Amp Regulator With Enable

SC4217

Features

Input voltage range from .8V to 5.5V

Typical 300mV dropout @ 3A

Adjustable output from .24V

Over-current and over-temperature protection

Enable pin

0µA shutdown current

Full industrial temperature range

TO263-5 package, fully WEEE and RoHS compliant

Applications

Telecom/networking equipment

Motherboards/peripheral cards

Industrial equipment

Wireless infrastructure

Set-top boxes

Medical equipment





























Description

The SC427 is a 3A, high performance LDO designed for

use in applications requiring very low input voltage and

very low dropout voltage. It operates with an input volt-

age as low as .8V and a programmable output voltage

from .24V. The SC427 features ultra- low dropout, ideal

for applications where V

tionally, the SC427 has an enable pin to further reduce

power dissipation while shut down. The SC427 provides

excellent regulation over line, load and temperature.

The SC427 is available in a TO263-5 package and is fully

WEEE and RoHS compliant.

Typical Application Circuit

April 03, 2009

0

VIN

R2

C2

EN

R1

C1

SC4217

2

3

5

4

1

VIN

GND

ADJ

VO

EN

0

VO