PM6776TR

Overview

The PM6776TR is a high-performance digital dual-channel voltage regulator controller designed to power Intel VR13 processors. It features up to 6+1 programmable phases and utilizes the STVCOT™ digital control loop for fast transient response. The device supports PMBus™ interface for full configurability and includes embedded non-volatile memory (NVM) for configuration storage. It offers AutoDPM for dynamic phase management, remote sensing with 0.5% Vout accuracy, and comprehensive protection against overcurrent, undervoltage, and feedback disconnections. Available in a VFQFPN48 6x6 mm package.

Feature Summary

• Intel VR13 compliant digital controller supporting 6+1 phase operation
• PMBus™ programmable with embedded non-volatile memory
• STVCOT™ digital control loop with auto-tuning capability
• Integrated black box recorder and automatic dynamic phase management

Applications

• Powering Intel VR13 compliant processors
• Server and data center CPU power supplies
• Multi-phase voltage regulation systems

Procurement Notes

Verify component authenticity through authorized STMicroelectronics distributors or direct channels. Confirm package integrity and pin alignment upon receipt. Ensure handling procedures comply with electrostatic discharge (ESD) protection standards. Cross-reference part numbers with official ST documentation to avoid counterfeit risks. Maintain proper storage conditions as specified in the datasheet.

Selection Notes

Select this component when designing power stages for Intel VR13 processors requiring high flexibility and performance. The PMBus™ interface allows detailed customization of voltage positioning and protection thresholds. Consider the 6+1 phase capability for higher current demands. The embedded NVM simplifies configuration persistence across power cycles. Evaluate thermal requirements based on the specific load conditions and ambient environment.

Part Context

The PM6776 is part of STMicroelectronics' portfolio of digital multiphase controllers aimed at server and data center applications. It complements other devices like the PM6773, offering different phase configurations while maintaining compatibility with Intel VR12/VR13 standards. These controllers are designed to provide efficient power conversion with advanced digital control features.

Replacement Considerations

The PM6776 is listed as obsolete. Check for potential replacement parts within the same family or newer generations from STMicroelectronics that maintain VR13 compliance and similar pinouts. Verify functional equivalence before substitution.