This part is a kind of semiconductor called APL3523A.

Function of this product has 6A Dual Load Switch.

Manufacturers : ANPEC

Image and pinout :

Some of the text within the PDF file :

APL3523A Ultra-Low On-Resistance, 6A Dual Load Switch with Soft Start Features • • • • • • • • • • 16mΩ (Typical) On-resistance per Channel 6A Continuous Current Soft Start Time Programmable by External Capacitor Wide Input Voltage Range (VIN): 0.8V to 5.5V Supply Voltage Range (VBIAS): 3V to 5.5V Output Discharge when Switch Disabled Reverse Current Blocking when Switch Disabled Over-Temperature Protection Enable Input Lead Free and Green Devices Available (RoHS Compliant) General Description The APL3523A is an ultra-low on-resistance, dual powerdistribution switch with external soft start control. It integrates two N-channel MOSFETs that can deliver 6A continuous load current each. The device integrates over-temperature protection. The over temperature protection [ ... ]

APL3523A PDF Datasheet Download