The FDMF6705 is an extra-small, high-performance, high-frequency DrMOS module from Fairchild Semiconductor. The product features include an ultra-compact 6x6mm PQFN package, 72% space savings, fully optimized system efficiency, clean switching waveforms, and high current handling.
The FDMF6705 is a high-performance, extra-small DrMOS module designed for high-current, high-frequency synchronous buck DC-DC applications. It integrates a driver IC, two power MOSFETs, and a bootstrap Schottky diode into a thermally enhanced 6x6mm PQFN package.
Key features include over 93% peak efficiency, the ability to handle up to 40A at 12V input, and clean switching waveforms with minimal ringing due to Fairchild PowerTrench technology. The module incorporates adaptive gate drive timing for shoot-through protection, a thermal warning flag, and skip-mode operation for improved light-load efficiency.
| Current Rating | 40A at 12Vin, 38A at 19Vin |
|---|---|
| Peak Efficiency | Over 93% |
| Package Type | 6x6mm PQFN |
| Switching Frequency | Up to 1MHz |
| Operating Temperature Range | -40°C to +125°C |
| Maximum Junction Temperature | +150°C |
It is optimized for high-current, high-frequency synchronous buck DC-DC applications such as gaming motherboards and notebook computer V-Core converters.
Yes, it includes a Thermal Warning Flag (THWN#) that outputs LOW when the temperature exceeds the trip limit.
The module uses an ultra-compact 6x6mm PQFN package, offering a 72% space-saving compared to conventional discrete solutions.