Dual-Channel, 3.3V/500mA and 2.5V/500mA Linear Regulator

Copyright

© ANPEC Electronics Corp.

Rev. A.7 - Dec., 2008

APL5522

www.anpec.com.tw

1

ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain

the latest version of relevant information to verify before placing orders.

Features

General Description

Applications

•

Desktop Computer

•

Networking Systems

•

Optical Data Storage Systems

•

Fixed Output Voltage :

V

Dissipation)

V

Dissipation)

•

Low Dropout Voltage (Defined as the Minimum

Input/Output Voltage Difference):

Output 1 Dropout Voltage : 550mV (at 500mA)

Output 2 Dropout Voltage : 630mV (at 500mA)

•

Stable with 4.7

µF Output Capacitor(at V

Stable with 4.7

µF Output Capacitor(at V

•

No Protection Diodes Needed

•

Built-In Thermal Protection

•

Built-In Current-Limit Protection

•

Fast transient Response

•

Short Setting Time

•

SOP-8 and SOP-8P Packages Available

•

Lead Free and Green Devices Available

(RoHS Compliant)

Pin Configuration

= Thermal Pad

(The thermal pad of SOP-8P has to be connected

to the GND plane to get better heat dissipation

than SOP-8.)

SOP-8 Top View

SOP-8P Top View

V

IN

GND

1

2

3

8

6

4

7

5

GND

V

OUT2

V

IN

V

OUT1

GND

GND

1

2

3

8

6

4

7

5

V

IN

GND

V

OUT2

V

IN

V

OUT1

NC

NC

NC

The APL5522 is a dual low dropout regulator with output

1 with 3.3V/0.5A and output2 with 2.5V/0.5A output

capability. In order to obtain lower dropout voltage and

faster transient response, which is critical for low voltage

applications, the APL5522 has been optimized. V

cal dropout voltage is 550mV at 500mA loading and V

OUT2

typical dropout voltage is 630mV at 500mA loading. Cur-

rent limit is trimmed to ensure specified output current

and controlled short-circuit current. On-chip thermal lim-

iting provides protection against any combination of over-

load that would create excessive junction temperatures.

The APL5522 regulator comes in a SOP-8 and SOP-8P

packages.