MP2333x Synchronous Buck Converters Monolithic Power Systems (MPS) MP2333x Synchronous Buck Converters are fully integrated, high-frequency, rectified, step-down, and switch-mode converters with internal power MOSFETs. These converters offer a compact solution that achieves 3A continuous output current with excellent load/line regulation over a wide input range. The space-saving SOT583 packaged MP2333x converters use synchronous mode operation for higher efficiency over the output current load range. These converters operate within a -40°C to +125°C temperature range and a 4.2V to 18V supply voltage range.