ACE555

400mA LDO Dropout Voltage Regulator

VER 1.2

1 

Description

ACE555 is a series of low dropout three terminal regulators with a dropout of 1.22V at 400mA load

current.

Other than a fixed version（Vout＝1.8V,2.5V,2.85V,3.3V,5V）, ACE555 has an adjustable version, which

can provide an output voltage from 1.25 to 13.8V with only two external resistors.

ACE555 offers thermal shut down and current limit functions, to assure the stability of chip and power

system. And it uses trimming technique to guarantee output voltage accuracy within ±2％.

ACE555 is available in SOT-89-3 power Package. Lead free package is also available on command.

Features

Application

Absolute Maximum Ratings

Parameter

Symbol

Max

Unit

Input voltage

18

V

Power Dissipation

SOT-89-3

0.5

W

Junction temperature

150

Environment Temperature

140

Storage temperature

65 to 150