MP6900DS-LF-P

Power Supply Controllers, Monitors Overview

The MP6900DS-LF-P is a low-drop fast turn-off intelligent rectifier controller manufactured by Monolithic Power Systems. Designed for flyback and quasi-resonant topologies, it replaces Schottky diodes in secondary-side synchronous rectification applications. The device operates within an input voltage range of 8V to 24V and supports switching frequencies up to 400 kHz. It features a total turn-off delay of 20ns and regulates the external MOSFET forward voltage drop to approximately 70mV. The component is housed in an SOIC-8 surface-mount package and functions as a non-isolated secondary side controller.

Power Supply Controllers, Monitors Feature Summary

• Regulates external MOSFET forward voltage drop to approximately 70mV for high efficiency
• Provides rapid turn-off with a total delay of 20ns to minimize reverse recovery losses
• Supports both standard 12V and 5V logic level MOSFETs for flexible design integration

Power Supply Controllers, Monitors Applications

• Flyback converters requiring secondary side synchronous rectification
• Quasi-resonant power supply designs
• Low-power adapters meeting Energy Star standby requirements

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix 'P' indicates tube packaging versus 'Z' for reel packaging when ordering. Confirm RoHS compliance status through official manufacturer documentation prior to procurement. Ensure the selected variant matches the required thermal and mechanical specifications for the target application environment.

Power Supply Controllers, Monitors Selection Notes

Select this component for designs prioritizing reduced conduction losses via synchronous rectification. Ensure the external MOSFET selection aligns with the controller's drive capabilities for either 12V or 5V logic levels. Verify that the operating frequency remains within the 400 kHz limit to maintain optimal performance and stability.

Power Supply Controllers, Monitors Part Context

This part belongs to the MP6900 series of intelligent rectifiers from Monolithic Power Systems. It serves as a direct replacement for traditional diode-based rectification in flyback architectures. The DS suffix denotes the SOIC-8 package option, distinguishing it from TSOT-23-5 or QFN variants within the same functional family.

Power Supply Controllers, Monitors Replacement Considerations

MP6900DJ-LF-P

Power Supply Controllers, Monitors FAQ

Does the MP6900DS-LF-P support both continuous and discontinuous conduction modes?

Yes, the device supports CCM, DCM, and quasi-resonant topologies.

What is the maximum operating temperature for this controller?

The maximum operating temperature is +125°C.