Part Number : APL5551
Function : Dual Channel 500mA/500mA Regulator + Reset IC
Manufacturer : Anpec Electronics
Pinout :
Description
General Description
The APL5551 is a dual-channel regulator with reset function (specific voltage monitori ng), and internal delay circuit, set to detect 3.9V. Maximum input voltage is 6V, and both output1 a nd output2 ca n deliver up to 450mA. The typical dropout voltage of both channel is 500mV at 500mA loading. Design with an internal
P-cha nnel MOSFET pass transistor , the APL5551 maintains a low supply curr ent . Other feat ures include, thermal-shutdown protecti on, current limit protection to ensure specified output current. The APL5551 comes in miniature SOP-8 and OP-8-P packages.
Features
• Low Quiescent Current : 1 10mA (No load)
• Low Dropout Voltage :
VDROP1 = 450mV @ 500mA
VDROP2 = 500mV @ 500mA
• Fixed Output Voltage :
VOUT1 = 3.3V/500mA
VOUT2 = 2.8V/500mA
• Stable with 4.7mF Output Ca pacitor
• Stable with Aluminum, Tantalum or Ceramic Capacitors
• Built in Thermal Protection
• Fast Transient Response
• Short Setting Time
• SOP-8, SOP-8-P with Thermal Pad Packages
• Adjustment-free Reset Detection Voltage :3.9V typ
• Easy to Set Delay Time from Voltage Detection to Reset Release
• Lead Free Available (RoHS Compliant)

