MP158GJ-Z

AC DC Converters, Offline Switchers Overview

The MP158GJ-Z is a small, energy-efficient offline AC/DC converter manufactured by Monolithic Power Systems. It operates within a supply voltage range of 5.3 V to 5.6 V and delivers a fixed output voltage of 4 V at a maximum output current of 50 mA. The device supports Buck, Buck-Boost, Flyback, and Boost topologies with a switching frequency of 50 kHz and a maximum duty cycle of 47%. It provides up to 2 W of output power while consuming only 30 mW at no-load conditions. The component functions in a non-isolated configuration and is housed in a TSOT-23-5 package, suitable for surface mount installation across an operating temperature range of -40°C to +125°C.

AC DC Converters, Offline Switchers Feature Summary

• Supports multiple offline topologies including Buck, Buck-Boost, and Flyback configurations
• Delivers ultra-low no-load power consumption of 30 mW for energy efficiency
• Integrates internal protection mechanisms against overloads and thermal events

AC DC Converters, Offline Switchers Applications

• Low-power offline AC/DC conversion systems
• Energy-efficient standalone power supplies
• Compact consumer electronics requiring minimal standby power

AC DC Converters, Offline Switchers Procurement Notes

Verify the exact part number suffix to ensure correct packaging and RoHS compliance status. Confirm that the specific revision matches the required datasheet version for accurate electrical characteristics. Check manufacturer documentation for any recent updates regarding pinout or thermal performance specifications before finalizing procurement orders.

AC DC Converters, Offline Switchers Selection Notes

Select this component when designing non-isolated offline regulators requiring a compact TSOT-23-5 footprint. It is appropriate for applications needing a fixed 4 V output from a narrow input voltage window. Consider its 50 mA current limit and 50 kHz switching frequency when sizing external passive components for the chosen topology.

AC DC Converters, Offline Switchers Part Context

This device belongs to the MP158 series of small energy-efficient offline regulators from Monolithic Power Systems. It is categorized under PMIC AC/DC converters and is designed for applications prioritizing low standby power consumption. The series utilizes Silicon technology and offers various package options to suit different board space constraints.

AC DC Converters, Offline Switchers Replacement Considerations

MP156GJ-P is listed as a direct substitute option.