March 2012
FDMF6707B - Extra-Small, High-Performance, High-
Frequency DrMOS Module
Benefits
Description
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Ultra-Compact 6x6mm PQFN, 72% Space-Saving
Compared to Conventional Discrete Solutions
The XS™ DrMOS 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
FDMF6707B integrates a driver IC, two power MOSFETs,
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Fully Optimized System Efficiency
Clean Switching Waveforms with Minimal Ringing
High-Current Handling
and
a bootstrap Schottky diode into a thermally
enhanced, ultra-compact 6x6mm PQFN package.
Features
With an integrated approach, the complete switching
power stage is optimized for driver and MOSFET
dynamic performance, system inductance, and power
MOSFET RDS(ON). XS™ DrMOS uses Fairchild's high-
performance PowerTrench® MOSFET technology,
which dramatically reduces switch ringing, eliminating
the snubber circuit in most buck converter applications.
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Over 93% Peak-Efficiency
High-Current Handling of 50A
High-Performance PQFN Copper-Clip Package
3-State 3.3V PWM Input Driver
Skip-Mode SMOD# (Low-Side Gate Turn Off) Input
A
new driver IC with reduced dead times and
Thermal Warning Flag for Over-Temperature
Condition
propagation delays further enhances performance. A
thermal warning function warns of potential over-
temperature situations. FDMF6707B also incorporates
features such as Skip Mode (SMOD) for improved light-
load efficiency, along with a 3-state 3.3V PWM input for
compatibility with a wide range of PWM controllers.
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Driver Output Disable Function (DISB# Pin)
Internal Pull-Up and Pull-Down for SMOD# and
DISB# Inputs, Respectively
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Fairchild PowerTrench® Technology MOSFETs for
Clean Voltage Waveforms and Reduced Ringing
Applications
Fairchild SyncFET™ (Integrated Schottky Diode)
Technology in the Low-Side MOSFET
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High-Performance Gaming Motherboards
Compact Blade Servers, V-Core and Non-V-Core
DC-DC Converters
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Integrated Bootstrap Schottky Diode
Adaptive Gate Drive Timing for Shoot-through
Protection
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Desktop Computers, V-Core and Non-V-Core
DC-DC Converters
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Under-Voltage Lockout (UVLO)
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Workstations
Optimized for Switching Frequencies up to 1MHz
Low-Profile SMD Package
High-Current DC-DC Point-of-Load (POL)
Converters
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Networking and Telecom Microprocessor Voltage
Regulators
Fairchild Green Packaging and RoHS Compliant
Based on the Intel® 4.0 DrMOS Standard
Small Form-Factor Voltage Regulator Modules
Ordering Information
Part Number
Current Rating
Package
Top Mark
FDMF6707B
50A
40-Lead, Clipbond PQFN DrMOS, 6.0mm x 6.0mm Package FDMF6707B
© 2011 Fairchild Semiconductor Corporation
FDMF6707B • Rev. 1.0.2
www.fairchildsemi.com
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