MP2348 Synchronous Step-Down Converters Monolithic Power Systems (MPS) MP2348 Synchronous Step-Down Converters are fully integrated, high frequency, synchronous, rectified, step-down, switch-mode converter with internal power MOSFETs. The MPS MP2348 Step-Down Converters deliver a compact solution to achieve 4A of continuous output current across a wide input range, with excellent load and line regulation. The MP2348 implements synchronous mode operation for higher efficiency across the output current load range.