CHL8225-00CRT Description

The CHL8225-00CRT is a dual-loop digital multi-phase buck controller. It drives up to 5 phases. It features Input Voltage Management allows up to 3 input voltages to be monitored to ensure adequate power is delivered to the load. 

CHL8225-00CRT 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

• I_CRITICAL Monitor and Phase Current Capture Mode

• Phase Switching frequency from 200kHz to 1.2MHz

• CHiL 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

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

• Designed for use with coupled inductors

• 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 CHiL ATL and 3.3V tri-state Drivers

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

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

CHL8225-00CRT Applications

• Multiphase GPU systems