ncep40t17ag.pdf datasheet:

http://www.ncepower.com NCEP40T17AGNCE N-Channel Super Trench Power MOSFET Description The NCEP40T17AG uses Super Trench technology that is uniquely optimized to provide the most efficient high frequency switching performance. Both conduction and switching power losses are minimized due to an extremely low combination of RDS(ON) and Qg. This device is ideal for high-frequency switching and synchronous rectification. General Features VDS =40V,ID =170A Schematic Diagram RDS(ON)=1.4m (typical) @ VGS=10V D D D D D D D D Excellent gate charge x RDS(on) product(FOM) Very low on-resistance RDS(on) 150 C operating temperature Pb-free lead plating 100% UIS tested S S S G G S S S Application DC/DC Converter Top View Bottom View Ideal for high-frequency switching and synchronous rectification 100% UIS TESTED!