MP5424 5V PMIC QFN-26

MP5424 5V PMIC QFN-26

The MP5424 is a complete power management solution that integrates four high-efficiency step- down DC/DC converters, three low-dropout (LDO) regulators, one load switch, and a flexible logic interface.

Key Specifications

Features

• Low-Dropout (LDO) Regulators: o Three 300mA, Low-Noise LDOs o Two Separate Input Power Supplies o 50mV Dropout at 300mA Load

Typical Application Circuit

Applications

• General Consumer
• Camera Modules
• 3.3V/5V Powered 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