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STD40NF03L N-channel 30V - 0.0090 - 40A - DPAK Low gate charge STripFETTM II Power MOSFET General features Type VDSS RDS(on) ID STD40NF03L 30V <0.011 40A Logic level device 3 Optimal RDS(on) x Qg trade-off 1 Conduction losses reduced DPAK Switching losses reduced Low threshold drive Description This application specific Power MOSFET is the third generation of STMicroelectronics unique "Single Feature SizeTM" strip-based process. The Internal schematic diagram resulting transistor shows the best trade-off between on-resistance and gate charge. When used as high and low side in buck regulators, it gives the best performance in terms of both conduction and switching losses. This is extremely important for motherboards where fast switching and high efficiency are of paramount importance. Applications Switching application Order codes Part number Marking Package Packaging STD40NF03LT4 D40NF03L DPAK Tape & reel February 2007 Rev 11 1/13 www.st.com 13 Contents STD40NF03L Contents 1 Electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.1 Electrical characteristics (curves) ... 6 3 Test circuit ... 8 4 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 5 Packing mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2/13 STD40NF03L Electrical ratings 1 Electrical ratings Table 1. Absolute maximum ratings Symbol Parameter Value Unit VDS Drain-source voltage (VGS = 0) 30 V VDGR Drain-gate voltage (RGS = 20