MP9989GS-P

OR Controllers, Ideal Diodes Overview

The MP9989GS-P is a switching controller from Monolithic Power Systems designed for CCM/DCM flyback topologies. It integrates an ideal diode function with a 100V, 10mΩ N-channel MOSFET. The device operates within a supply voltage range of 4.5V to 13V and draws 4mA of operating current. It supports a single output with a maximum voltage of 13V and current of 4A. The component functions at a switching frequency of 100 kHz and operates reliably between -40°C and +125°C junction temperature. It is housed in an 8-SOIC package.

OR Controllers, Ideal Diodes Feature Summary

• Integrates an ideal diode rectifier with a high-voltage internal MOSFET to replace external synchronous rectifiers.
• Supports both Continuous Conduction Mode (CCM) and Discontinuous Conduction Mode (DCM) flyback operation.
• Features fast turn-on and turn-off delay times to minimize switching losses and improve efficiency.

OR Controllers, Ideal Diodes Applications

• Flyback power supplies requiring integrated synchronous rectification
• General-purpose non-isolated power conversion circuits
• Systems utilizing the MP9989 series topology

OR Controllers, Ideal Diodes Procurement Notes

Verify the specific suffix against official manufacturer documentation to confirm package type and tape/reel specifications. Ensure compatibility with moisture sensitivity levels and storage conditions prior to assembly. Confirm that the intended application aligns with the documented electrical limits and thermal performance characteristics provided in the datasheet.

OR Controllers, Ideal Diodes Selection Notes

Select this component when designing flyback converters that benefit from integrated synchronous rectification to reduce board space and component count. Consider the 100V drain-source voltage rating and 10mΩ on-resistance for efficiency requirements. Verify that the 100 kHz switching frequency meets system noise and size constraints compared to higher-frequency alternatives.

OR Controllers, Ideal Diodes Part Context

This part belongs to the MP9989 series of intelligent rectifiers and switching controllers. It is categorized under PMIC - Power Management ICs. The GS suffix indicates an SOIC-8 package variant. It serves as a specialized solution for optimizing secondary-side rectification in isolated and non-isolated DC-DC converter designs.

OR Controllers, Ideal Diodes Replacement Considerations

MP9989GS-Z is a verified substitute within the same series offering identical functionality in the same package.

OR Controllers, Ideal Diodes FAQ

What is the internal MOSFET voltage rating?

The integrated N-channel MOSFET has a breakdown voltage rating of 100V.

Does the MP9989GS-P support DCM operation?

Yes, the controller is designed to operate in both Continuous Conduction Mode (CCM) and Discontinuous Conduction Mode (DCM).