ACE521 datasheet(1/10 Pages) ACE

部件名	ACE521

功能描述	250mA CMOS Low consumption Linear Regulator

PDF	10 Pages

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制造商	ACE [ACE Technology Co., LTD.]

网页	http://www.ace-ele.com

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ACE521

250mA CMOS Low consumption Linear Regulator

VER 1.4

1

Description

ACE521 series is a group of positive voltage output, low power consumption, low dropout voltage, three

terminal regulator. It can provide 200mA output current when input / output voltage differential drops to

420mV( Vout=3.3V), And it also provides foldback short-circuit protection and output current limit function.

The very low power consumption of ACE521（Iq=2.0uA）can greatly improve natural life of batteries.

ACE521 can provide output value in the range of 1.1V~5.0V in 0.1V steps. It also can customized on

command.

ACE521 includes high accuracy voltage reference, error amplifier, current limit circuit and output driver

module.

ACE521 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:2.0uA（Typ.）

 Maximum Output Current:250mA

 Small Dropout Voltage

210mV@100mA (Vout=3.3V)

420mV@200mA (Vout=3.3V)

 Input Voltage Range:2V~16V

 Output Voltage Range:1.1V~5.0V (customized on command in 0.1V steps)

 Highly Accurate:±2%(±1% customized）

 Output Current Limit 330mA@Vout=3.3V

 Foldback Short‐circuit Current 56mA@Vout=3.3V

Application

 Battery Powered equipment

 Power Management of MP3. PDA. DSC. Mouse. PS2 Games

 Reference Voltage Source Regulation after Switching Power

Typical Application

ACE521

Note: Input capacitor (Cin=1uF) and Output capacitor (Cout=1uF) are recommended in all application circuit. Ceramic capacitor

is recommended.

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