MP86957 3-16V, 70A Intelli-PhaseTM Solution (Integrated HS/LS-FETs and Driver) in LGA-41

MP86957 3-16V, 70A Intelli-PhaseTM Solution (Integrated HS/LS-FETs and Driver) in LGA-41

The MP86957 is a monolithic half-bridge with built-in internal power MOSFETs and gate drivers.

Key Specifications

Features

• Wide 3V to 16V Operating Input Range
• 70A Output Current
• Current Sense: Accu-SenseTM
• Temperature Sense
• Accepts Tri-State PWM Signal
• Current Limit Fault Flag
• Over-Temperature Fault Flag
• Low-Side Catastrophic Fault Flag and Protection
• Available in a 5mmx6mm LGA Package

Typical Application Circuit

Applications

• Server 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