MP172GJ-P

AC DC Converters, Offline Switchers Overview

The MP172GJ-P is a non-isolated offline regulator from Monolithic Power Systems, designed for low-power applications. It features an integrated 700V MOSFET and supports Buck, Boost, Buck-Boost, and Flyback topologies. The device provides primary-side constant voltage regulation without optocouplers. Key electrical specifications include a maximum output current of 120mA in CCM and 80mA in DCM. It operates with a VCC input range of 5.5V to 5.7V and offers an operating supply current between 2.2mA and 6mA. The component is housed in a TSOT-23-5 package.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a 700V MOSFET and current source to simplify circuit design and reduce component count.
• Enables precise constant voltage regulation via primary-side control, eliminating the need for optocouplers.
• Supports multiple converter topologies including Buck, Boost, Buck-Boost, and Flyback configurations.

AC DC Converters, Offline Switchers Applications

• Home appliances
• Standby power supplies
• Low-power offline converters

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'GJ' corresponds to the TSOT-23-5 package variant. Confirm availability status as the part may be subject to limited supply or factory special orders. Ensure compatibility with existing PCB footprints for the TSOT-23-5 form factor before integration.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring simplified isolation-free architectures with integrated high-voltage switching. Consider its suitability for applications where size constraints favor the TSOT-23-5 package. Evaluate if the 120mA maximum output current meets the load requirements for the intended topology.

AC DC Converters, Offline Switchers Part Context

This part belongs to the MP172 series of non-isolated offline regulators. It is positioned as a cost-effective solution for low-power applications by integrating the power switch. The series emphasizes green energy features through frequency folding and peak current regulation at light loads.

AC DC Converters, Offline Switchers Replacement Considerations

MP172A is documented as an alternative for new designs due to improved EMI performance. Verify pinout and functional compatibility before substitution.