This part is a kind of semiconductor called MDS3604.

Function of this product has Single P-Channel Trench MOSFET.

Manufacturers : MagnaChip

Image and pinout :

Some of the text within the PDF file :

MDS3604– Single P-Channel Trench MOSFET, -30V, -11A, 12.1mΩ MDS3604 Single P-Channel Trench MOSFET, -30V, -11A, 12.1mΩ General Description The MDS3604 uses advanced MagnaChip’s MOSFET Technology to provide low on-state resistance. This device is suited for Power Management and load switching applications common in Notebook Computers and Portable Battery Packs. Features VDS = -30V ID = -11A @VGS = -10V RDS(ON) < 10.0mΩ @VGS = -20V < 12.1mΩ @VGS = -10V < 18.3mΩ @VGS = -5V Applications Load Switch General purpose applications Smart Module for Note PC Battery 6(D) 7(D) 8(D) 5(D) D 2(S) 1(S) 4(G) 3(S) G S Absolute Maximum Ratings (Ta =25oC unless otherwise noted) Characteristics Drain-Source Voltage Gate-Source Voltage Continuous Drain Current Pulsed Drain Current Power [ ... ]

MDS3604 PDF Datasheet Download