MP8051DQU-LF-Z

Overview

The MP8051DQU-LF-Z is a high-efficiency, monolithic switching bridge regulator designed for offline applications. It integrates two self-driven N-MOSFETs and two Schottky diodes to facilitate AC/DC conversion. The device operates with a fixed frequency and supports an input voltage range of 4V to 16V. It features ultra-low standby power consumption and includes comprehensive fault protection mechanisms such as current limiting, over-temperature, over-voltage, and UVLO.

Feature Summary

• Monolithic integration of self-driven N-MOSFETs and Schottky diodes
• Ultra-low standby power consumption for energy efficiency
• Integrated fault protection including current limiting and thermal shutdown

Applications

• Offline AC/DC power supplies
• Bridge rectifier regulation circuits
• High-efficiency switching power converters

Procurement Notes

Verify the specific suffix (LF-P vs LF-Z) against the manufacturer's official documentation to ensure correct packaging and RoHS compliance status. Confirm availability as product status may be listed as obsolete in some databases. Cross-reference the datasheet revision date to ensure compatibility with current design requirements.

Selection Notes

Select this component for applications requiring a compact, monolithic solution for bridge regulation without external discrete MOSFETs. Ensure the operating environment stays within the specified voltage range of 4V to 16V. Consider the integrated thermal protection when designing heat dissipation strategies for enclosed enclosures.

Part Context

This part belongs to the Monolithic Power Systems MP8051 series, which focuses on high-efficiency offline regulation. The DQU package indicates a specific surface-mount footprint suitable for automated assembly. It serves as a specialized PMIC for converting AC inputs to regulated DC outputs in consumer and industrial electronics.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify pinout and electrical specifications carefully if considering alternative bridge regulators from other manufacturers.