MP86912C 28V, 25A, Intelli-Phase™ Solution in LGA (3mmx4mm) Package Notice:

MP86912C 28V, 25A, Intelli-Phase™ Solution in LGA (3mmx4mm) Package Notice:

The MP86912C is a monolithic half-bridge driver with built-in, internal power MOSFETs and gate drivers.

Key Specifications

Features

• Wide Operating Input Range
• Compliant with Intel DrMOS V4.0 Spec
• 25A Output Current
• Accepts Tri-State PWM Signal
• Built-In Switch for Bootstrap
• Current Sense
• Temperature Sense
• Current-Limit Protection
• Over-Temperature Protection (OTP)
• Fault Reporting: Over-Current (OC) and Over-Temperature (OT)

Typical Application Circuit

Applications

• Notebook Core Voltage
• Graphic Card Core Regulators

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