MP86963 4.5-21V, 20A Intelli-PhaseTM Solution (Integrated HS/LS FETs and Driver) in a

MP86963 4.5-21V, 20A Intelli-PhaseTM Solution (Integrated HS/LS FETs and Driver) in a

The MP86963 is a monolithic Half Bridge with built-in internal power MOSFETs and gate driver.

Key Specifications

Features

• Wide 4.5V to 21V Operating Input Range
• 20A Output Current
• Simple Logic Interface (3.3V)
• Operate from 100kHz to 1MHz
• Accepts 3-state PWM Input
• Suitable for single-/multi-phase operation
• Available in a 5mm x 5mm TQFN Package
• ROHS6 Compliant

Typical Application Circuit

Applications

• Power modules
• Notebook, Core Voltage

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