This part is a kind of semiconductor called MDU1516.
Function of this product has Single N-channel Trench MOSFET.
Manufacturers : MagnaChip
Image and pinout :
Some of the text within the PDF file :
MDU1516 – Single N-Channel Trench MOSFET 30V MDU1516 Single N-channel Trench MOSFET 30V, 47.6A, 9.0mΩ General Description The MDU1516 uses advanced MagnaChip’s MOSFET Technology, which provides high performance in on-state resistance, fast switching performance and excellent quality. MDU1516 is suitable device for DC/DC Converter and general purpose applications. Features VDS = 30V ID = 47.6A @VGS = 10V RDS(ON) < 9.0 mΩ @VGS = 10V < 14.0 mΩ @VGS = 4.5V 100% UIL Tested 100% Rg Tested DD DD DD DD D S SSG GS SS PowerDFN56 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=70o [ ... ]