PM6766

Overview

The PM6766 is a high-performance digital multiphase controller designed for Intel VR12.5 processors and memories. It supports up to 6-phase programmable operation and features a fully digital control loop with STVCOT technology. The device includes embedded non-volatile memory (NVM) for custom configurations and a Black Box recorder. It offers dynamic phase management (DPM), remote sensing with 0.5% Vout accuracy, and comprehensive protection against overcurrent, undervoltage, and feedback disconnections. Available in a VFQFPN40 5 x 5 mm package.

Feature Summary

• Digital implementation of all control and power management functions for maximum flexibility
• Supports power state transitions featuring VFDE and programmable DPM for optimal efficiency
• Ensures fast and independent protection against load overcurrent, under/overvoltage, and feedback disconnections
• Fully configurable through PMBus interface with embedded NVM for storing custom configurations

Applications

• Powering Intel VR12.5 compliant processors
• Powering Intel VR12.5 compliant memories
• Multi-phase voltage regulation modules requiring digital control

Procurement Notes

Verify the specific ordering code suffix to ensure correct package type and temperature range. Confirm that the procurement channel provides genuine STMicroelectronics components. Check for any specific handling requirements related to the VFQFPN40 package during assembly. Ensure compatibility with existing PMBus infrastructure for configuration and telemetry.

Selection Notes

Select the PM6766 when a 6-phase solution is required for VR12.5 compliant loads. Choose this component if digital configurability via PMBus is necessary for system optimization. Consider this part for applications demanding high transient response and efficient light-load operation through DPM. Verify that the 5 x 5 mm package fits the PCB layout constraints.

Part Context

The PM6766 belongs to STMicroelectronics' family of digital multi-phase controllers, specifically designed for CPU and memory power supplies. It complements other models like the PM6764 (4-phase) by offering higher phase count capabilities. These devices utilize advanced digital technologies to replace traditional analog controllers, providing enhanced programmability and monitoring features for modern server and computing platforms.

Replacement Considerations

The PM6764 serves as a lower-phase alternative within the same family. No direct public substitute part numbers are confirmed in the provided documentation.