FDMF301155: Smart Power Stage (SPS) Module

The SPS family is Fairchild’s next-generation, fully optimized, ultra-compact, integrated MOSFET plus driver power stage solution for high-current, high-frequency, synchronous buck, DC-DC applications. The FDMF301155 integrates a driver IC with a bootstrap Schottky diode and two power MOSFETs into a thermally enhanced, ultra-compact 5 mm x 5 mm package.

With an integrated approach, the SPS switching power stage is optimized for driver and MOSFET dynamic performance, minimized system inductance, and power MOSFET RDS(ON). The SPS family uses Fairchild's high-performance PowerTrench® MOSFET technology, which reduces switch ringing, eliminating the need for a snubber circuit in most buck converter applications.A driver IC with reduced dead times and propagation delays further enhances the performance. The FDMF301155 supports diode emulation (using FCCM pin) for improved light-load efficiency. The FDMF301155 also provides a 3-state 5 V PWM input for compatibility with a wide range of PWM controllers.

Features

• Supports PS4 Mode for IMVP-8
• Ultra-Compact 5 mm x 5 mm PQFN Copper-Clip Package with Flip Chip Low-Side MOSFET
• High Current Handling: 50 A
• 3-State 5V PWM Input Gate Driver
• Low Shutdown Current I_VCC < 6 μA
• Diode Emulation for Enhanced Light Load Efficiency
• Fairchild PowerTrench® MOSFETs for Clean Voltage Waveforms and Reduced Ringing
• Fairchild SyncFET™ Technology (Integrated Schottky Diode) in Low-Side MOSFET
• Integrated Bootstrap Schottky Diode
• Optimized / Extremely Short Dead-Times
• Under-Voltage Lockout (UVLO) on VCC
• Optimized for Switching Frequencies up to 1.5 MHz
• Operating Junction Temperature Range: -40°C to +125°C
• Fairchild Green Packaging and RoHS Compliance