Fairchild FDMF6706C Specifications Manual
Summary
This ultra-compact 6x6mm DrMOS module is a high-performance, integrated power stage designed for efficient synchronous buck DC-DC conversion. The manual provides detailed specifications for its integrated MOSFETs, driver IC, and bootstrap diode, highlighting features like >93% peak efficiency and operation up to 1MHz. It is the ideal solution for engineers designing compact systems including blade servers, gaming motherboards, professional workstations, and high-current point-of-load regulators where superior thermal performance is required.
Page 1 Text Content
6706C - E tra-S all H ig -P erfo rm an ce, H ig -F req en cy D r M le
March 2012
FDMF6706C – Extra-Small, High-Performance, High- Frequency Dr MOS Module
Benefits Description The XS™ Dr MOS family is Fairchild’s next-generation,
Ultra-Compact 6x6mm PQFN, 72% Space-Saving
fully optimized, ultra-compact, integrated MOSFET plus
Compared to Conventional Discrete Solutions
driver power stage solutions for high-current, high-
Fully Optimized System Efficiency frequency, synchronous buck DC-DC applications. The
Clean Switching Waveforms with Minimal Ringing FDMF6706C integrates a driver IC, two power MOSFETs, and a bootstrap Schottky diode into a
High-Current Handling
thermally enhanced, ultra-compact 6x6mm PQFN package.
Features
With an integrated approach, the complete switching
Over 93% Peak-Efficiency power stage is optimized with regards to driver and
High-Current Handling of 43A MOSFET dynamic performance, system inductance, and Power MOSFET RDS(ON). XS™ Dr MOS uses
High-Performance PQFN Copper Clip Package
Fairchild's high-performance Power Trench® MOSFET 3-State 5V PWM Input Driver technology, which dramatically reduces switch ringing, eliminating the need for a snubber circuit in most buck
Shorter Propagation Delays than FDMF6704
converter applications.
Shorter Dead Times than FDMF6704
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 Thermal Warning Flag for Over-Temperature this part. A thermal warning function has been included Condition to warn of a potential over-temperature situation. The FDMF6706C also incorporates features, such as Skip
Driver Output Disable Function (DISB# Pin)
Mode (SMOD), for improved light-load efficiency along Internal Pull-Up and Pull-Down for SMOD# and with a 3-state 5V PWM input for compatibility with a DISB# Inputs, Respectively wide range of PWM controllers.
Fairchild Power Trench® Technology MOSFETs for
Applications
Clean Voltage Waveforms and Reduced Ringing
Fairchild Sync FET™ (Integrated Schottky Diode) High-Performance Gaming Motherboards
Technology in the Low-Side MOSFET Compact Blade Servers, V-Core and Non-V-Core
Integrated Bootstrap Schottky Diode DC-DC Converters Adaptive Gate Drive Timing for Shoot-through Desktop Computers, V-Core and Non-V-Core Protection DC-DC Converters Under-Voltage Lockout (UVLO) Workstations Optimized for Switching Frequencies up to 1MHz High-Current DC-DC Point-of-Load (POL) Converters
Low-Profile SMD Package
Networking and Telecom Microprocessor Voltage
Fairchild Green Packaging and Ro HS Compliant
Regulators
Based on the Intel® 4.0 Dr MOS Standard
Small Form-Factor Voltage Regulator Modules
Ordering Information Part Current Input Switching
Package Top Mark
Number Rating Voltage Frequency
40-Lead, Clipbond PQFN Dr MOS,
FDMF6706C 40A 12V 1000k Hz FDMF6706C
6.0x6.0mm Package
© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com FDMF6706C • Rev. 1.0 2
Page Summary Contents For Fairchild FDMF6706C Specifications Manual
Manual Details
| Brand | Fairchild |
|---|---|
| Pages | 18 |
| File Size | 1.77 MB |
| Published | June 06, 2026 |
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Frequently Asked Questions
What is the max current handling capability of this DrMOS module?
The FDMF6706C supports a high-current handling capacity of 43A.
Where should I place capacitors for optimal performance?
For VCIN and VDRV, minimum 1µF ceramic capacitors are recommended to be connected as close as possible from these pins to CGND.
What is the purpose of the SMOD# pin?
SMOD# facilitates Skip-Mode operation (SMOD), which improves light-load efficiency.
Can Pin #6 (GH) be connected during a circuit build?
No, pin 6 (GH) is solely for manufacturing test and must float; it cannot be connected to any other pin.