MP86884-3 4.5-14V, 55A Future of Analog IC Technology MP86884 Intelli-PhaseTM Solution

MP86884-3 4.5-14V, 55A Future of Analog IC Technology MP86884 Intelli-PhaseTM Solution

The MP86884 is a monolithic half-bridge with built-in internal power MOSFETs and gate drivers.

Key Specifications

Features

• Wide 4.5V to 14V Operating Input Range
• Simple Logic Interface
• 55A Output Current
• Accepts Tri-State PWM Signal
• Built-In Switch for bootstrap
• Current Sense
• Temperature Sense
• Current Limit Protection
• Used for Multi-Phase Operation
• Available in 6mm x 6mm TQFN 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