The FDMF6705B is a high-performance, high-frequency DrMOS module with a 6x6mm PQFN ultra-compact package that saves 72% of space over conventional discrete solutions. It also features fully optimized system efficiency, clean switching waveforms with minimal ringing, and the ability to handle 40A of high current.
The FDMF6705B is a next-generation, fully optimized 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 an ultra-compact 6x6mm PQFN package based on the Intel 4.0 DrMOS Standard.
Key features include over 93% peak efficiency, high-current handling of up to 40A at 12V input, and clean switching waveforms utilizing Fairchild PowerTrench technology. The module incorporates adaptive gate drive timing for shoot-through protection, a thermal warning flag, skip-mode operation for light-load efficiency, and is optimized for switching frequencies up to 1MHz.
| Package Type | 40-Lead, Clipbond PQFN DrMOS, 6.0x6.0mm Package |
|---|---|
| Current Rating (12V In) | 40A |
| Current Rating (19V In) | 38A |
| Peak Efficiency | Over 93% |
| Optimized Switching Frequency | Up to 1MHz |
| Junction-to-PCB Thermal Resistance | 3.5 °C/W |
| Ambient Temperature Range | -40 to +125 °C |
The module uses an ultra-compact 6x6mm PQFN package.
Yes, it incorporates a thermal warning flag that outputs LOW when temperature exceeds the trip limit.
The FDMF6705B is optimized for switching frequencies up to 1MHz.