CHL8228G-03CRT

CHL8228G-03CRT Description

The CHL8228G-03CRT is a dual-loop, digital multi-phase buck controller. It drives up to 8 phases. It features Input Voltage Management allows up to 3 input voltages to be monitored to ensure adequate power is delivered to the load.

CHL8228G-03CRT 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

• IR Adaptive Transient Algorithm (ATA) minimizes output bulk capacitors and system cost

• Per-Loop Fault Protection: OVP, UVP, OCP, OTP

• I2C/SMBus/PMBus system interface for telemetry of

• Temperature, Voltage, Current & Power for both loops

• Non-Volatile Memory (NVM) for custom configuration

• Compatible with IR ATL and 3.3V tri-state Drivers

• +3.3V supply voltage; 0oC to 85oC ambient operation

• Pb-Free, RoHS, 6x6 40-pin & 8x8 56-pin QFN, MSL2 package

CHL8228G-03CRT Applications

• Multiphase GPU systems