CHL8225G-04CRT Description

The CHL8225G-04CRT is a dual-loop, digital multi-phase buck controller. The CHL8225G-04CRT drives up to 5 phases. It features Input Voltage Management allowing up to 3 input voltages to be monitored to ensure adequate power is delivered to the load. Dynamic voltage control is provided by 4 registers which are programmed through I2C/SMBus/PMBus and then selected using a 2-bit parallel bus for fast access.

CHL8225G-04CRT Features

5-phase & 8-phase dual output PWM Controller with phases flexibly assigned between Loops 1 & 2

Dynamic voltage control by 2-bit parallel interface with Gamer Mode overrides and Vmax setting

Input Voltage Management for up to 3 Input Voltages

ICRITICAL Monitor and Phase Current Capture Mode

Phase Switching frequency from 200kHz to 1.2MHz

IR Efficiency Shaping Features including Variable Gate Drive, Dynamic Phase Control

Programmable 1-phase or 2-phase for Light Loads and Active Diode Emulation for Very Light Loads

CHL8225G-04CRT Applications

Multiphase GPU systems

Automotive 

Hybrid, electric & powertrain systems 

Industrial 

Power delivery 

Enterprise systems 

Datacenter & enterprise computing