ACE557U

250mA, Low Consumption, Wide Input Voltage Linear Regulator

VER 1.2

1

Description

The ACE557U series are a group of positive voltage output, high precise and low power consumption

voltage regulators. The maximum input voltage is 16V. The output voltages are available in 100mV steps

within a range of 2.5V to 5V. It can also be customized on request.

The ACE557U series have very low power consumption (IQ

=2μA) which can greatly extend battery life.

The ACE557U series are available in SOT23-5 & SOT89-5 packages.

Features

⚫

Maximum Input Voltage: 16V

⚫

Low Quiescent Current: 2μA (Typ.)

⚫

Maximum Output Current: 250mA

⚫

⚫

Low Temperature Coefficient: ±150ppm/°C

⚫

Application

⚫

Battery-Powered Equipment

⚫

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

⚫

Reference Voltage Source

⚫

Hand-Hold Equipment

Absolute Maximum Rating

Parameter

Symbol

Value

Unit

V

IN

Max Input Voltage

18

V

Power dissipation

SOT-23-5

300

mW

SOT-89-5

1200

mW

Operating Junction Temperature

125

°C

Ambient Temperature

-40 to 85

°C

Storage Temperature Range

T

STG

-40 to 150

°C

Lead Temperature for Soldering 10 Seconds

260

°C

Recommended Work Condition

Symbol

Parameter

Value

Unit

V

IN

Max Input Voltage

16

V