MP5461 4.2-5.5V Dual Input

MP5461 4.2-5.5V Dual Input

The MP5461 is a dual input, 4-switch, integrated buck-boost converter.

Key Specifications

Features

• 1µA Shutdown Current
• 200µA Quiescent Current
• Active Low System EN Pin
• EN to OR_OUT Start-Up Delay 300μs
• Over-Temperature Shutdown
• Available in a Wafer Level Chip Scale Packaging: CSP-12(1.4mmx1.8mm)

Typical Application Circuit

Applications

• USB-C Cable

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