qm4001d.pdf datasheet:

QM4001D P-Ch 40V Fast Switching MOSFETsGeneral Description Product SummeryThe QM4001D is the highest performance trench P-ch MOSFETs with extreme high cell density , BVDSS RDSON ID which provide excellent RDSON and gate charge -40V 65m -16Afor most of the synchronous buck converter applications . Applications The QM4001D meet the RoHS and Green Product requirement , 100% EAS guaranteed with full High Frequency Point-of-Load Synchronous function reliability approved. Buck Converter for MB/NB/UMPC/VGA Networking DC-DC Power System Features Load Switch Advanced high cell density Trench technology TO252 Pin Configuration Super Low Gate Charge D Excellent CdV/dt effect decline 100% EAS Guaranteed Green Device Available SDAbsolute Maximum Ratings GSymbol Parameter Rating Units VDS Drain-Source Voltage -40 V VGS Gate-