RT9600

Preliminary RT9600 Synchronous-Rectified Buck MOSFET Drivers General Description The RT9600 is a high frequency, dual MOSFET driver specifically designed to drive two power N-Channel MOSFETs in a synchronous-rectified buck converter topology. This driver combined with the RT9237/RT9241 series of Multi-Phase Buck PWM controller form a complete core-voltage regulator solution for advanced microprocessors. The RT9600 drives both the lower/upper gate in a synchronous-rectifier bridge with 12V. Independent driving of upper gate through PVCC pin is achievable. This drivevoltage flexibility provides the advantage of optimizing applications involving trade-offs between switching losses and conduction losses. The output drivers in the RT9600 can efficiently switch power MOSFETs at frequency up to 500kHz. Switching frequency above 500kHz has to take into account the thermal dissipation of SOP-8 package. RT9600 is capable of driving a 3000pF load with a 30ns rise time. RT9600 implements bootstrapping on the upper gate with only an external capacitor required. This reduces implementation complexity and allows the use of higher performance, cost effective, N-Channel MOSFETs. Adaptive shoot-through protection is integrated to prevent both MOSFETs from conducting simultaneously. Ordering Information RT9600 Package Type S : SOP-8 Operating Temperature Range C : Commercial Standard P : Pb Free with Commercial Standard Note : RichTek Pb-free products are : −RoHS compliant and compatible wit...