CHL8228G-11CRT Description

CHL8228G-11CRT is a dual-loop, digital multi-phase buck controller. The CHL8228G-11CRT drives up to 8 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. The CHL8228G-11CRT includes the IREfficiency Shaping Technology to deliver exceptional efficiency at minimum cost across the entire load range.

CHL8228G-11CRT 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

CRITICAL 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

CHL8228G-11CRT Applications

Multiphase GPU systems

Automotive 

Body electronics & lighting 

Industrial 

Medical 

Personal electronics 

Gaming