APL5538 Datasheet PDF – Dual Channel 300mA Regulator

Part Number: APL5538

Function: Dual Channel 300mA Regulator + Reset IC

Package: SOP 8 Pin

Manufacturer: Anpec Electronics

Image and Pinouts:

APL5538 datasheet




The APL5538 is a dual-channel regulator with reset function (specific  voltage  onitoring),  and internal delay circuit, set to detect 3.9V or 4.2V. Maximum in put voltage is 6V, output1 and output2 deliver up to 300mA.  VOUT1 typical dropout voltage is 350mV at 300mA loading and VOUT2 typical dropout voltage is 350mV at 300mA loading.

Design with an internal P channel MOSFET pass transistor,  the APL-5538 main tains a low supply current. Other  features include,thermal-shutdown protection, current limit protection to ensure specified  output current. The APL5538 come in miniature SOP-8 and SOP-8-P packages.


1. Low Quiescent Current : 110μA (No load)

2. Low  Dropout Voltage :

(1) VDROP1=350mV@300mA

(2) VDROP2=350mV@300mA

3. Fixed Output Voltage :

(1) VOUT1=3.3V/300mA

(2) VOUT2=3.3V/300mA

4. Stable with 2.2mF Output Capacitor

5. Stable with  Aluminum, T antalum or Ceramic Capacitors

6. Built in Thermal Protection

7. Fast Transient Response

8. Short Setting Tim

9. Adjustment-free Reset  Detection Voltage : 3.9V or 4.2V typ

10. Easy to Set Delay Time from Voltage Detection to Reset Release



1. CD-ROM drive.

Other data sheets are available within the file: APL5538K, APL5538KA

APL5538 Datasheet PDF Download

APL5538 pdf