FDMF3039: Smart Power Stage (SPS) Module

The SPS family is Fairchild’s fully optimized, ultra-compact, integrated MOSFET plus driver power stage solution for high-current, high-frequency, synchronous buck, DC-DC applications. The FDMF3039 integrates a driver IC with a bootstrap Schottky diode and two power MOSFETs into a thermally enhanced, ultra-compact 3.5 mm x 4.5 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 FDMF3039 supports diode emulation (using FCCM pin) for improved light-load efficiency. The FDMF3039 also provides a 3-state 5V PWM input for compatibility with a wide range of PWM controllers.

Features

• Supports PS4 Mode for IMVP-8
• Ultra-Compact 3.5 mm x 4.5 mm PQFN Copper-Clip Package with Flip Chip Low-Side MOSFET
• High Current Handling: 30 A
• 3-State 5 V 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 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