General Description
The RT9226B is a low cost, high-efficiency voltage mode PWM controller for motherboard power supply application. Synchronous N-channel MOSFET driver, short-circuit protection, and soft start function are
integrated in a single chip. A simple high power buck regulator with shutdown function can be implemented with minimum external components.

FEATUREs
Synchronous N-channel MOSFET Driver
High Efficiency
Fast Response with 200kHz Operating Frequency
Adjustable Current Limit by Sensing MOSFET RDS(ON), without Extra Current Sensing Resistor
Shutdown Function
Power Good Indication Output and Over voltage Protection

APPLICATIONs
Low Cost CPU Power Supply
Motherboard I/O Power Supply
Add-On Card Power Supply
DDR SDRAM Bus Terminator Power Supply