MP17xA Non-Isolated Offline Regulators

Monolithic Power Systems’ MP17xA series are primary-side regulators that provide accurate constant voltage (CV) regulation without an optocoupler. These devices support buck, boost, buck-boost, and flyback topologies. The devices’ integrated 700 V MOSFET simplifies the structure and reduces cost. This feature optimizes the devices for offline, low-power applications, such as home appliances and standby power. The MP17xA series are green mode operation regulators. Both the peak current and switching frequency lower as the load decreases. This feature provides excellent efficiency at light load and improves the overall efficiency. Protection features include thermal shutdown (TSD), V_CC undervoltage lockout (UVLO), overload protection (OLP), short-circuit protection (SCP), and open-loop detection. These devices are available in TSOT23-5 and SOIC-8 packages.