FDMF6706C Datasheet, PDF (1/18 Pages) Fairchild Semiconductor – Extra-Small, High-Performance, High- Frequency DrMOS Module

March 2012
FDMF6706C – Extra-Small, High-Performance, High-
Frequency DrMOS Module
Benefits
 Ultra-Compact 6x6mm PQFN, 72% Space-Saving
Compared to Conventional Discrete Solutions
 Fully Optimized System Efficiency
 Clean Switching Waveforms with Minimal Ringing
 High-Current Handling
Features
 Over 93% Peak-Efficiency
 High-Current Handling of 43A
 High-Performance PQFN Copper Clip Package
 3-State 5V PWM Input Driver
 Shorter Propagation Delays than FDMF6704
 Shorter Dead Times than FDMF6704
 Skip-Mode SMOD# (Low-Side Gate Turn Off) Input
 Thermal Warning Flag for Over-Temperature
Condition
 Driver Output Disable Function (DISB# Pin)
 Internal Pull-Up and Pull-Down for SMOD# and
DISB# Inputs, Respectively
 Fairchild PowerTrench® Technology MOSFETs for
Clean Voltage Waveforms and Reduced Ringing
 Fairchild SyncFET™ (Integrated Schottky Diode)
Technology in the Low-Side MOSFET
 Integrated Bootstrap Schottky Diode
 Adaptive Gate Drive Timing for Shoot-through
Protection
 Under-Voltage Lockout (UVLO)
 Optimized for Switching Frequencies up to 1MHz
 Low-Profile SMD Package
 Fairchild Green Packaging and RoHS Compliant
 Based on the Intel® 4.0 DrMOS Standard
Description
The XS™ DrMOS family is Fairchild’s next-generation,
fully optimized, ultra-compact, integrated MOSFET plus
driver power stage solutions for high-current, high-
frequency, synchronous buck DC-DC applications. The
FDMF6706C integrates a driver IC, two power
MOSFETs, and a bootstrap Schottky diode into a
thermally enhanced, ultra-compact 6x6mm PQFN
package.
With an integrated approach, the complete switching
power stage is optimized with regards to driver and
MOSFET dynamic performance, system inductance,
and Power MOSFET R_DS(ON). XS™ DrMOS uses
Fairchild's high-performance PowerTrench® MOSFET
technology, which dramatically reduces switch ringing,
eliminating the need for a snubber circuit in most buck
converter applications.
A new driver IC with reduced dead times and
propagation delays further enhances the performance of
this part. A thermal warning function has been included
to warn of a potential over-temperature situation. The
FDMF6706C also incorporates features, such as Skip
Mode (SMOD), for improved light-load efficiency along
with a 3-state 5V PWM input for compatibility with a
wide range of PWM controllers.
Applications
 High-Performance Gaming Motherboards
 Compact Blade Servers, V-Core and Non-V-Core
DC-DC Converters
 Desktop Computers, V-Core and Non-V-Core
DC-DC Converters
 Workstations
 High-Current DC-DC Point-of-Load (POL)
Converters
 Networking and Telecom Microprocessor Voltage
Regulators
 Small Form-Factor Voltage Regulator Modules
Ordering Information
Part
Number
Current
Rating
Input
Voltage
FDMF6706C
40A
12V
Switching
Frequency
1000kHz
Package
40-Lead, Clipbond PQFN DrMOS,
6.0x6.0mm Package
Top Mark
FDMF6706C
© 2011 Fairchild Semiconductor Corporation
FDMF6706C • Rev. 1.0 2
www.fairchildsemi.com