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CHL8266 - Digital Multi-Phase GPU Buck Controller

Description

The CHL8266 is a 6-phase digital synchronous buck controller for regulation of high-performance GPU platforms.

The CHL8266 output VID table is fully compliant with VR11.1 specifications.

Features

  • GPU-compliant Digital PWM Controller.
  • Programmable 1-phase to 6-phase operation.
  • Configurable switching frequency from 200 kHz to 1MHz per phase with accuracy better than 2%.
  • IR Dynamic Phase Control.
  • 1-phase to 2-phase PSI for Light Loads.
  • Adaptive Transient Algorithm minimizes output bulk capacitors.
  • Enables Thermal Phase Balancing.
  • SMBus interface for configuring and monitoring.
  • Compatible with IR ATL Drivers and Tri-state Drivers.
  • Nine bytes.

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Full PDF Text Transcription

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Digital Multi-Phase GPU Buck Controller CHL8266 FEATURES  GPU-compliant Digital PWM Controller  Programmable 1-phase to 6-phase operation  Configurable switching frequency from 200 kHz to 1MHz per phase with accuracy better than 2%  IR Dynamic Phase Control  1-phase to 2-phase PSI for Light Loads  Adaptive Transient Algorithm minimizes output bulk capacitors  Enables Thermal Phase Balancing  SMBus interface for configuring and monitoring  Compatible with IR ATL Drivers and Tri-state Drivers  Nine bytes of NVM storage available for customer use  +3.
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