MP3424A Synchronous Step-Up Converter Monolithic Power Systems (MPS) MP3424A Synchronous Step-Up Converter is a high-efficiency, current mode, boost converter with output disconnect. The MP3424A targets various load capability boosts from a battery input with an accurate load current limit. The MP3424A starts up from an input voltage (VIN) as low as 2V while providing inrush current limiting, output short-circuit protection (SCP), and a configurable load current limit. The integrated P-channel synchronous rectifier improves efficiency and eliminates the need for an external Schottky diode. The P-channel MOSFET disconnects the output from the input during a shutdown.