This part is a kind of semiconductor called APM4826K.
Function of this product has N-Channel Enhancement Mode MOSFET.
Manufacturers : Anpec Electronics Coropration
Image and pinout :

Some of the text within the PDF file :
APM4826K N-Channel Enhancement Mode MOSFET Features • 30V/11A, RDS(ON) =9.5mΩ(Typ.) @ VGS = 10V RDS(ON) =13.5mΩ(Typ.) @ VGS = 4.5V Pin Description D D D D S S S G • Super High Dense Cell Design • Avalanche Rated • Reliable and Rugged • Lead Free and Green Devices Available (RoHS Compliant) SOP-8 (5,6,7,8) DD D D Applications • Power Management in Notebook Computer, and DC-DC Converters in Networking Systems. (4) G S S S ( 1, 2, 3 ) N-Channel MOSFET Ordering and Marking Information APM4826 Assembly Material Handling Code Temperature Range Package Code APM4826 XXXXX Package Code K : SOP-8 Operating Junction Temperature Range C : -55 to 150 oC Handling Code TR : Tape & Reel Assembly Material G : Halogen and Lead Free Device XXXXX - Date Code APM4826 K : Note: ANPEC [ ... ]
APM4826K PDF Datasheet Download
