RT9224C - Richtek Technology

RT9224C VRM 9.0 Synchronous PWM Buck Converter Controller and Output Voltage Monitor

The RT9224C is a high speed switching controller designed for use in Synchronous DC/DC buck converter for modern CPUs. The regulated output voltage is digitally programmable from 1.075V to 1.85V by a 5-bit DAC which provides initial accuracy of ±1%. The RT9224C drives two external N-Channel MOSFETs, providing high efficiency and eliminating the need for high.

Features

Simple Voltage-Mode PWM Control with Buck Rectification ±1% DAC Output Voltage Accuracy 5-Bit Digital-to-Analog Output Voltage Range from 1.075V to 1.85V Fast Transient Response and Excellent Output Voltage Regulation Fault Protection for Over-Voltage and Over- Current Power-Good Output Voltage Monitor Applications Power Supply for VRM 9.0 Microprocessors Low-Voltage Distributed Power Supplies High Power 5V to 1.075V to 1.85V Switching Regulator Pin Configurations (TOP VIEW) VSEN OCSET SS VID0 VID1 VID2 VID3 VID4 NC FB 20 19 18 17 16 15 14 13 12 11 NC OVP VCC LGATE PGND BOOT UGATE PHASE PGOO.