Smart Power Stage Module 31-Pin PQFN

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 FDMF582 0TDC integrates a driver IC with a bootstrap Schottky diode , two power MOSFETs, and a thermal monitor 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 R DS(ON) . The SPS family uses Fairchild"s high - performance Power Trench 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. A thermal warning function warns of a potential over - temperature situation. The FDMF5 820TDC incorporates an Auto - DCM Mode ( ZCD #) for improved light - load efficiency. The FDMF58 20TDC also provides a 3 - state 3.3 V PWM input for compatibility with a wide range of PWM controllers.

• Ultra - Compact 5 mm x 5 mm PQFN Copper - Clip Package with Flip Chip Low - Side MOSFET and Dual Cool Architecture
• High Current handling: 60A
• 3 - State 3.3 V PWM Input Gate Driver
• Dynamic resistance Mode for Low - Side Drive (LDRV) Slows Low - Side MOSFET during Negative Inductor Current Switching
• Auto DCM (Low - Side Gate Turn Off) Using ZCD# Input
• Thermal Warning (THWN#) to Warn Over - Temperature of Gate Driver IC
• H S - Short Detect Fault # / Shutdown
• Dual Mode Enable / Fault # Pin
• Internal Pull - Up and Pull - Down for ZCD# and EN Inputs, respectively
• Fairchild Power Trench® MOSFETs for Clean Voltage Waveforms and Reduced Ringing
• Fairchild Sync FE T™ 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
• PWM Minimum Controllable On - Time : 30 ns
• Low Shutdown Current : < 3 µ A
• Optimized FET P air for Highest Efficiency : 10 ~ 15% Duty Cycle
• Operating Junction Temperature Range: - 40 °C to +125 °C
• Fairchild Green Packaging and RoHS Compliance