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ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.FDMF6705B - Extra-Small, High-Performance, High-Frequency DrMOS Module April 2013 FDMF6705B - Extra-Small, High-Performance, High- Frequency DrMOS Module Description Benefits The XS DrMOS family is Fairchilds next-generation, Ultra-Compact 6x6 mm PQFN, 72% Space-Saving fully optimized, ultra-compact, integrated MOSFET plus Compared to Conventional Discrete Solutions driver power stage solution for high-current, high- Fully Optimized System Efficiency frequency, synchronous buck DC-DC applications. The FDMF6705B integrates a driver IC, two power MOSFETs, Clean Switching Waveforms with Minimal Ringing and a bootstrap Schottky diode into a thermally High-Current Handling enhanced, ultra-compact 6x6 mm PQFN package. With an integrated approach, the complete switching Features power stage is optimized with regards to driver and MOSFET dynamic performance, system inductance, Over 93% Peak-Efficiency and power MOSFET R XS DrMOS uses DS(ON). High-Current Handling of 40 A at 12 V IN Fairchild s high-performance PowerTrench MOSFET High-Current Handling of 38 A at 19 V IN technology, which dramatically reduces switch ringing, eliminating the need for a snubber circuit in most buck High-Performance PQFN Copper-Clip Package converter applications. 3-State 3.3 V PWM Input Driver A new driver IC with reduced dead times and Skip-Mode SMOD (Low-Side Gate Turn-Off) Input propagation delays further enhances the performance of this part. A thermal warning function warns of a potential Thermal Warning Flag for Over-Temperature Condition over-temperature situation. The FDMF6705B also incorporates features, such as Skip Mode (SMOD), for Driver Output Disable Function (DISB Pin) improved light-load efficiency, along with a three-state Internal Pull-Up and Pull-Down for SMOD and 3.3 V PWM input for compatibility with a wide range of DISB Inputs, Respectively PWM controllers. Fairchild PowerTrench Technology MOSFETs for Applications Clean Voltage Waveforms and Reduced Ringing Fairchild SyncFET (Integrated Schottky Diode) High-Performance Gaming Motherboards Technology in the Low-Side MOSFET Notebook Computers, V-Core and Non-V-Core Integrated Bootstrap Schottky Diode Compact Blade Servers, V-Core and Non-V-Core Adaptive Gate Drive Timing for Shoot-Through DC-DC Converters Protection Desktop Computers, V-Core and Non-V-Core Under-Voltage Lockout (UVLO) DC-DC Converters Optimized for Switching Frequencies up to 1 MHz Workstations Low-Profile SMD Package High-Current DC-DC Point-of-Load (POL) Fairchild Green Packaging and RoHS Compliance Converters Based on the Intel 4.0 DrMOS Standard Small Form-Factor Voltage Regulator Modules Ordering Information Part Number Current Rating Package Top Mark FDMF6705B 40 A 40-Lead, Clipbond PQFN DrMOS, 6.0x6.0 mm Package FDMF6705B 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com FDMF6705B Rev. 1.0.3