MP17XA NON-ISOLATED OFFLINE REGULATORS

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MPS’ MP17xA series non-isolated offline regulators feature an integrated 700 V MOSFET and offer up to 280 mA output current with improved EMI performance

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 under-voltage lockout (UVLO), overload protection (OLP), short-circuit protection (SCP), and open-loop detection. These devices are available in TSOT23-5 and SOIC-8 packages.

Features

Primary-side CV control
Support buck, buck-boost, boost, and flyback topologies
Integrated 700 V MOSFET and current source
Under 30 mW no-load power consumption
Up to 4 W output power
Max. DCM output current below 180 mA
Max. CCM output current below 280 mA
Low V_CC operating current
Frequency foldback
Limited max. frequency
Peak current compression
Internally biased V_CC

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