MP9989 Diode
MPS' CCM/DCM flyback ideal diode with integrated 100 V/10 mΩ MOSFET and no need for auxiliary winding
Monolithic Power Systems' MP9989 is a fast turn-off, intelligent rectifier for flyback converters that integrates a 100 V MOSFET that can replace a diode rectifier for higher efficiency and power density. The device regulates the forward voltage drop of the internal power switch to 40 mV and turns off before the drain-source voltage reverses. The MP9989 can generate its own supply voltage without the need for auxiliary winding, which makes it suitable for charger applications with a low output voltage requirement or any other adapter applications with high-side set-up. The internal ringing detection circuitry prevents the MP9989 from falsely turning on during discontinuous conduction mode (DCM) or quasi-resonant operations and is available in SOIC-8 and QFN4x5-8 packages.
- Integrated 100 V/10 mΩ MOSFET
- Wide output range down to 0 V
- No need for auxiliary winding for high-side or low-side rectification
- Ringing detection prevents false turn-on during DCM operations
- Compatible with Energy Star
- 110 µA quiescent current
- Supports DCM, CCM, and quasi-resonant operations
- Available in SOIC-8 and QFN4x5-8 packages
Applications
- Laptop adapters
- QC and USB PD chargers
- High-efficiency flyback converters
MP9989 Diodes
| Image | Manufacturer Part Number | Description | Mounting Type | Package / Case | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|---|---|
![]() | ![]() | MP9989GV-P | CCM/DCM FLYBACK IDEAL DIODE WITH | Surface Mount | 8-PowerVDFN | 174 - Immediate | $50.86 | View Details |
![]() | ![]() | MP9989GS-Z | CCM/DCM FLYBACK IDEAL DIODE WITH | Surface Mount | 8-SOIC (0.154", 3.90mm Width) | 2219 - Immediate | $46.03 | View Details |
![]() | ![]() | MP9989GV-Z | CCM/DCM FLYBACK IDEAL DIODE WITH | Surface Mount | 8-PowerVDFN | 3342 - Immediate | $47.04 | View Details |
![]() | ![]() | MP9989GS-P | CCM/DCM FLYBACK IDEAL DIODE WITH | Surface Mount | 8-SOIC (0.154", 3.90mm Width) | 480 - Immediate | $49.85 | View Details |
Eval Boards
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
![]() | ![]() | EV9989-S-00A | EVAL BOARD FOR MP9989 | 1 - Immediate | $262.43 | View Details |
![]() | ![]() | EV9989-V-00A | EVAL BOARD FOR MP9989 | 0 - Immediate | $262.43 | View Details |






