General Description

The RT9210 is a dual high power, high efficiency synchronous buck DC-DC controller optimized for high

performance double data rate (DDR) memory applications.

Features

Operating with Single 5V Supply Voltage

High Power VDDQ, VTTand VREFfor DDR Memory

VTTTracks (VDDQ/2) to ±30mV

VTTRegulator Internally Compensated

Support “S3” Sleep Mode

Drives All Low Cost N-MOSFETs

Voltage Mode PWM Control

300kHz Fixed Frequency Oscillator

Fast Transient Response : Full 0 to 100 Duty Ratio

Internal Soft-Start

Adaptive Non-Overlapping Gate Driver

Over-Current Fault Monitor on VCC, No Current Sense Resistor Required

RoHS Compliant and 100 Lead (Pb)-Free

Applications

DDR Memory Termination Supply

SSTL_2 and SSTL_3 Interfaces

Graph Card, Motherboard, Desktop Servers

High Power Tracking DC-DC Regulators