Dual-Channel, 3.3V/500mA and 1.8V/300mA Linear Regulator

Copyright

 ANPEC Electronics Corp.

Rev. A.1 - July., 2004

APL5523

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

The APL5523 is a dual low dropout regulator with

output1 with 3.3V/0.5A and output2 with 1.8V/0.3A

output capability. In order to obtain lower dropout

voltage and faster transient response, which is criti-

cal for low voltage applications, the APL5223 has

been optimized. The dropout voltages are guaran-

teed at 0.6V at 0.5A for output1 and 0.9V at 0.3A for

output 2. Current limit is trimmed to ensure speci-

fied output current and controlled short-circuit current.

On-chip thermal limiting provides protection against

any combination of overload that would create ex-

cessive junction temperatures. The APL5523 regu-

lator comes in a SOP-8 and SOP-8-P package.

Applications

•

Desktop Computer

•

Networking Systems

•

Optical Data Storage Systems

•••••

Fixed Output Voltage :

•••••

Low Dropout Voltage (defined as the minimum

input/output voltage difference):

Output 1 Dropout Voltage : 0.6V (at 500mA)

Output 2 Dropout Voltage : 0.9V (at 300mA)

•••••

•••••

Built in Thermal Protection

•••••

Built in Current Limit Protection

•••••

Fast transient Response

•••••

Short Setting Time

•••••

SOP-8 and SOP-8-P Package Available

Pin Configuration

SOP

−8 (Top View)

Ordering and Marking Information

A P L 5523

H andling C ode

T e m p . R a nge

P a ck age C ode

P a ck age C ode

K : S O P -8

K A : S O P -8 -P

O p eratin g Jun c tion T e m p . R a n g e

C : 0 to 1 5 0 ° C

H andling C ode

T U : T u b e

T R : Tape & R eel

Lea d F ree C ode

L : Lead F ree D e v ice

B lank : O rig inal D e v ic e

A P L5523 K /K A :

A P L5523

XXXXX

XXXXX - D a te C o d e

Lea d F ree C ode

SOP-8-P (Top View)

(connected to GND plane for better heat

dissipation)

= Thermal Pad

GN D

1

2

3

8

6

4

7

5

NC

NC

NC

GN D

1

2

3

8

6

4

7

5

GN D

GN D

GN D