Part Number : APL5501
Function : low Iq, low dropout 500 mA fixed voltage regulator
Package : SOT-89, SOP-8, SOT-23-5 Type
Maker : Anpec Electronics
Pinouts : 
Description :
The APL5501 / APL5502 / APL5503 are micropower, low noi se, low drop out linear regulators. Operate from 2.7V to 6V input volt age and deliver up to 500mA. Typical output noise is just 50mV
RMS with the addition of an external 0.1mF bypass capacitor in BP pin and typical dropout voltage is only 170mV at 500mA loading. Designed for use in battery-powered system, the low 50mA quiescent current makes it an ideal choice.
Features :
1. Stable with Aluminum, Tantalum or Ceramic Capacitors
2. Reverse Current Protection
3. No Protection DiodesNeeded
4. Built in Thermal Protection
5. Built in Current Limit Protection
6. Controlled Short Circuit Current : 150mA
7. Fast Transient Response
Applications :
1. Notebook Computer
2. PDA or Portable Equipments
3. Noise-Sensitive Instrumentation Systems
Datasheet PDF Download : 
Others datasheet of same file :
APL5501-13B, APL5501-13BC-TR, APL5501-13D5C-TR, APL5501-13DC-TR