MP2174Cx Synchronous Step-Down Converters Monolithic Power Systems (MPS) MP2174Cx Synchronous Step-Down Converters are monolithic, step-down, and switch-mode converters featuring built-in internal power MOSFETs. These step-down converters feature the Constant-On-Time (COT) control scheme that provides fast transient response and easy loop stabilization. The MP2174Cx converters include fault condition protections that features cycle-by-cycle current limit and thermal shutdown. These step-down converters operate at 2.7V to 5.5V input voltage range and -40°C to 125°C temperature range.