Click to expand full text
RT9618/A
Synchronous-Rectified Buck MOSFET Drivers
General Description
The RT9618/A are high frequency, dual MOSFET drivers specifically designed to drive two power N-MOSFETs in a synchronous-rectified buck converter topology. The drivers combined with Richtek’ s series of Multi-Phase Buck PWM controller form a complete core-voltage regulator solution for advanced micro-processors.
The RT9618/A drive both the lower/upper gate in a synchronous-rectifier bridge with 12V. This drive-voltage flexibility provides the advantage of optimizing applications involving trade-offs between switching losses and conduction losses.
RT9618A has longer UGATE/LGATE deadtime which can drive the MOSFETs with large gate RC value, avoiding the shoot-through phenomenon.