NCP3420

www.DataSheet4U.com NCP3420 MOSFET Driver with Dual Outputs for Synchronous Buck Converters The NCP3420 is a single Phase 12 V MOSFET gate driver optimized to drive the gates of both high−side and low−side power MOSFETs in a synchronous buck converter. The high−side and low−side driver is capable of driving a 3000 pF load with a 30 ns propagation delay and a 20 ns transition time. With a wide operating voltage range, high or low side MOSFET gate drive voltage can be optimized for the best efficiency. Internal adaptive nonoverlap circuitry further reduces switching losses by preventing simultaneous conduction of both MOSFETs. The floating top driver design can accommodate VBST voltages as high as 35 V, with transient voltages as high as 40 V. Both gate outputs can be driven low by applying a low logic level to the Output Disable (OD) pin. An Undervoltage Lockout function ensures that both driver outputs are low when the supply voltage is low, and a Thermal Shutdown function provides the IC with overtemperature protection. Features http://onsemi.com MARKING DIAGRAMS 8 8 1 SO−8 D SUFFIX CASE 751 3420 ALYW G 8 1 1 1 A L Y W G DFN8 MN SUFFIX CASE 506BJ 3420 ALYWG G Thermal Shutdown for System Protection Internal Pulldown Resistor Suppresses Transient Turn On of Either = Assembly Location = Wafer Lot = Year = Work Week = Pb−Free Package MOSFET Anti Cross−Conduction Protection Circuitry One Input Signal Controls Both the Upper and Lower Gate Outputs Output ...