This part is a kind of semiconductor called MDU1511RH.

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

Manufacturers : MagnaChip

Image and pinout :

Some of the text within the PDF file :

MDU1511 – Single N-Channel Trench MOSFET 30V ㅊ MDU1511 Single N-channel Trench MOSFET 30V, 100.0A, 2.4mΩ General Description The MDU1511 uses advanced MagnaChip’s MOSFET Technology, which provides high performance in on-state resistance, fast switching performance and excellent quality. MDU1511 is suitable device for DC/DC Converter and general purpose applications. Features VDS = 30V ID = 100A @VGS = 10V RDS(ON) < 2.4 mΩ @VGS = 10V < 3.3 mΩ @VGS = 4.5V 100% UIL Tested 100% Rg Tested D D D D D D D D D S S S G G S S S G PowerDFN56 S Absolute Maximum Ratings (Ta = 25oC) Characteristics Drain-Source Voltage Gate-Source Voltage TC=25 C Continuous Drain Current (1) TC=70 C TA=25 C TA=70oC Pulsed Drain Current TC=25 C TC=70 C Power Dissipation TA=25 C TA=70oC [ ... ]

MDU1511RH PDF Datasheet Download