CHL8203-00CRT

CHL8203-00CRT Description

The CHL8203-00CRT is a single-loop digital multiphase buck controller designed for GPU voltage regulation.

CHL8203-00CRT Features

• Single output 3-phase PWM Controller (CHL8203)

• Easiest layout and has the fewest pins in the industry

• Footprint compatible with CHL8225 (CHL8213/14) for analogue and power signals

• Up to 3 VID select lines for dynamic voltage transitions

• Slow OCP for Thermal Design Current (TDC) protection

• Programmable ICRITICAL signal

• I2C interface for configuration & telemetry

• Pin programmable I2C address (CHL8203/13/14)

• Overclocking support with I2C voltage override and Vmax setting

• Flexible I2C bus security features

• I2C security enable pin (CHL8203/13/14)

• Independent loop switching frequencies from 200kHz to 1.2MHz per phase

• IR Efficiency Shaping with Dynamic Phase Control (DPC)

• 1-phase & Active Diode Emulation modes for light load efficiency

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

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

• Thermal Protection (OTP) and VRHOT# flag (CHL8203/13/14)

• Multiple time programmable (MTP) memory for custom configuration

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

• 3.3V +10%/-15% supply voltage; 0oC to 85oC operation

• Pb-Free, RoHS, QFN packages

CHL8203-00CRT Applications

• Multi-phase GPU Systems

• GDDR Memory