PM6766TR

Overview

The PM6766TR is a digital multiphase controller designed for Intel VR12.5 processors, manufactured by STMicroelectronics. It supports up to six-phase programmable operation and utilizes a 40-VFQFPN (5x5 mm) package. The device operates with an input voltage range of 10.8V to 13.2V and provides an output voltage range of 0.52V to 2.3V. It features embedded non-volatile memory for configuration storage and complies with the 25 MHz SVID bus rev. 1.2 standard.

Feature Summary

• Digital control implementation utilizing STVCOT technology for high-performance transient response and steady-state efficiency.
• Full configurability via PMBus interface with embedded non-volatile memory for custom parameter storage.
• Integrated dynamic phase management (DPM) to optimize efficiency across varying load conditions.
• Comprehensive protection mechanisms including overcurrent, under/overvoltage, and feedback disconnection detection.

Applications

• Powering Intel VR12.5 compliant processors
• Multi-phase CPU power supply designs
• Server motherboard voltage regulation modules

Procurement Notes

Verify component authenticity through authorized channels as this part is officially obsolete. Check Product Change Notices regarding manufacturing site transfers or design revisions. Confirm package integrity and moisture sensitivity level handling procedures during assembly. Ensure compatibility with existing system firmware for PMBus communication protocols.

Selection Notes

Select this component for applications requiring strict adherence to Intel VR12.5 specifications. Consider the 40-pin VFQFPN footprint for PCB layout constraints. Evaluate the need for DPM functionality based on thermal and efficiency requirements. Verify that the host system supports the required SVID and PMBus interfaces for full feature utilization.

Part Context

The PM6766TR belongs to the PM6764/66 series of digital multi-phase controllers from STMicroelectronics. This family targets high-performance computing platforms, specifically supporting Intel's processor power delivery standards. The TR suffix indicates tape and reel packaging suitable for automated surface-mount assembly processes.

Replacement Considerations

The product status is listed as obsolete. Review official Product Change Notices for potential substitute part numbers or alternative packages recommended by the manufacturer. Consult distributor databases for last-time buy availability or equivalent newer generation controllers.