This part is a kind of semiconductor called MDD1502.

Function of this product has Single N-channel Trench MOSFET.

Manufacturers : MagnaChip

Image and pinout :

Some of the text within the PDF file :

MDD1502 – Single N-Channel Trench MOSFET 30V MDD1502 Single N-channel Trench MOSFET 30V, 45.7A, 8.5mΩ General Description The MDD1502 uses advanced MagnaChip’s MOSFET Technology, which provides high performance in on-state resistance, fast switching performance and excellent quality. MDD1502 is suitable device for DC to DC converter and general purpose applications. Features VDS = 30V ID = 45.7A @VGS = 10V RDS(ON) (MAX) < 8.5mΩ @VGS = 10V < 13.0mΩ @VGS = 4.5V 100% UIL Tested 100% Rg Tested D G Absolute Maximum Ratings (Ta = 25oC) Drain-Source Voltage Gate-Source Voltage Characteristics Continuous Drain Current (1) Pulsed Drain Current Power Dissipation Single Pulse Avalanche Energy (2) Junction and Storage Temperature Range TC=25oC TC=70oC TA=25oC TA=70oC TC=25oC TC=7 [ ... ]

MDD1502 PDF Datasheet Download