MP2927 Multi-Phase Controller QFN-40

MP2927 Multi-Phase Controller QFN-40

The MP2927 is a triple-loop, digital, multi-phase controller that provides power for the memory and system-on-chip (SoC).

Key Specifications

Features

• Multi-Phase, Triple-Output, Digital Controller
• PMBus/I2C-Compliant (1MHz Bus Speed)
• AVSBus Mode Available
• Built-In Non-Volatile Memory (NVM) to Store Custom Configurations
• 200kHz to 3MHz Switching Frequency (fSW) Range
• Coupled Inductor Mode for Rail 1
• Automatic Loop Compensation
• Fewer External Components than a Conventional Analog Controller
• Best Transient Performance with Digital Control
• Flexible Phase Assignment for Triple Rails

Typical Application Circuit

Applications

• SoC Power
• DDR Memory Power
• Telecom and Networking Systems

Design Notes

• Rail sequencing order and delay are part of the SoC power-up contract; a wrong order latches the processor even though every rail is in spec.
• In multiphase designs, current balance depends on the loop matching between phases, so keep the layout symmetric.
• Digital interfaces (PMBus, I²C) need pull-ups to the correct rail and a defined state during power-up.
• Thermal design is a system problem here: the PMIC sits next to the load it feeds, so budget the shared copper, not the package alone.

Common Questions