500mA Regulator + Reset IC

Copyright

 ANPEC Electronics Corp.

Rev. A.4 - Sep., 2002

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.

APL5505/6/7

Features

General Description

The APL5505/6/7 is micropower, low noise , low drop-

out regulators with a reset function (regulator input

(APL5505) or specific voltage(APL5506/7) monitoring),

and internal delay circuit, set to detect 3.9V or 4.2V.

Operate from 3V to 6V input voltage and deliver up to

external 0.01uF bypass capacitor connected in BP

pin and the typical dropout voltage is only 300mV at

500mA loading. Design with an internal P-channel

MOSFET pass transistor, the APL5505/6/7 maintains

a low supply current, independent of the load current

and dropout voltage. Other features include reverse

current protection, thermal-shutdown protection, cur-

rent limit protection to ensure specified output current

and controlled short-circuit current. The APL5505/6/

7 regulators come in miniature SOP-8, TSSOP-8 and

MSOP-8 packages.

Applications

• CD-ROM drive.

•••••

Low Quiescent Current : 120uA (No load)

•••••

500mA)

•••••

Fixed Output Voltage : 1.3V,1.4V,1.5V,1.6V,

1.7V,1.8V,1.9V, 2.0V,2.1V,2.2V,2.3V,2.4V,

2.5V,2.6V,2.7V, 2.8V,2.9V,3.0V,3.1V,3.2V,

3.3V,3.4V.

•••••

Stable with 4.7uF Output Capacitor

•••••

Stable with Aluminum , Tantalum or Ceramic

Capacitors .

•••••

Reverse Current Protection

•••••

No Protection Diodes Needed

•••••

Built in Thermal Protection

•••••

Built in Current Limit Protection

•••••

Controlled Short Circuit Current : 50mA

•••••

Fast transient Response

•••••

Short Setting Time

•••••

SOP-8,TSSOP-8 and MSOP-8 Packages.

•••••

Adjustment-free Reset Detection Voltage :

3.9V or 4.2V typ.

••••• Easy to Set Delay Time from Voltage

Detection to Reset Release.

••••• Reset and Reset output

Pin Configuration

RESET

RESET

GN D

1

2

3

8

6

4

7

5

CONT

B y pass

Cd

SOP-8 Top View

APL5505

SOP-8 Top View

APL5506

RESET

GN D

1

2

3

8

6

4

7

5

CONT

B y pass

Cd

RESET

GN D

1

2

3

8

6

4

7

5

CONT

B y pass

Cd

SOP-8 Top View

APL5507