ACE577C

40V 150mA Low Consumption Linear Regulator

VER 1.1

1

Description

ACE577C series is a group of positive voltage output, low power consumption, low dropout voltage

regulator. It can provide 150mA output current when input / output voltage differential drops to 400mV

(Vout = 5V), and it also provides fold back short-circuit protection, thermal protection and output current

limit function. The very low power consumption of ACE577C (Iq = 2.5uA) can greatly improve natural life

of batteries.

ACE577C can provide output value in the range of 1.2V~5.0V in 0.1V steps. It also can customize on

command.

ACE577C includes high accuracy voltage reference, error amplifier, and current limit circuit and output

driver module.

ACE577C has well load transient response and good temperature characteristic, And it uses trimming

technique to guarantee output voltage accuracy within±2%.

Features



Low Power Consumption: 2.5uA(Typ.)



Maximum Output Current: 150mA



Small Dropout Voltage



400mV@100mA (Vout=5V)



Input Voltage Range: 3V~40V



Output Voltage Range: 1.2V~5.0V (Vout>5V customized)



Highly Accurate:±2%(±1% customized)



Output Current Limit: 180mA

Application



Battery Powered equipment



Power Management of MP3、PDA、DSC、 Mouse、PS2 Games



Reference Voltage Source Regulation after Switching Power

Absolute Maximum Ratings

Parameter

Value

Max Input Voltage

48V

Operating Junction Temperature(Tj)

125℃

Ambient Temperature(Ta)

-40 ℃-85℃

Storage Temperature(Ts)

SOT-23-3

250mW

SOT-23-5

400mW

SOT-89-3

500mW

Lead Temperature & Time

-40℃ -150℃

Power Dissipation (PD@Ta=25)

260℃,10S