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is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.FDMF6705V - Extra-Small High-Performance, High-Frequency DrMOS Module
March 2012
FDMF6705V - Extra-Small, High-Performance, High-
Frequency DrMOS Module
Description
Benefits
The XS DrMOS family is Fairchilds next-generation,
Single 12V Input Power Supply Operation
fully optimized, ultra-compact, integrated MOSFET
Ultra-Compact 6x6mm PQFN, 72% Space-Saving
plus driver power stage solutions for high-current,
Compared to Conventional Discrete Solutions
high-frequency, synchronous buck DC-DC
applications. The FDMF6705V integrates a driver IC,
Fully Optimized System Efficiency
two power MOSFETs, and a bootstrap Schottky diode
Clean Switching Waveforms with Minimal Ringing
into a thermally enhanced, ultra-compact 6x6mm
PQFN package.
High-Current Handling
With an integrated approach, the complete switching
Features
power stage is optimized with regards to driver and
Over 93% Peak-Efficiency
MOSFET dynamic performance, system inductance,
and Power MOSFET R . XS DrMOS uses
High-Current Handling of 43A DS(ON)
Fairchild's high-performance PowerTrench MOSFET
High-Performance PQFN Copper Clip Package
technology, which dramatically reduces switch ringing,
3-State 5V PWM Input Driver
eliminating the need for a snubber circuit in most buck
converter applications.
Shorter Propagation Delays than FDMF6704V
A new driver IC with reduced dead times and
Shorter Dead Times than FDMF6704V
propagation delays further enhances the performance of
Skip-Mode SMOD# (Low-Side Gate Turn Off) Input
this part. A thermal warning function has been included
Thermal Warning Flag for Over-Temperature to warn of a potential over-temperature situation. The
FDMF6705V also incorporates features, such as Skip
Condition
Mode (SMOD), for improved light-load efficiency along
Driver Output Disable Function (DISB# Pin)
with a 3-state PWM input for compatibility with a wide
Internal Pull-Up and Pull-Down for SMOD# and
range of PWM controllers.
DISB# Inputs, Respectively
Applications
Fairchild PowerTrench Technology MOSFETs for
Clean Voltage Waveforms and Reduced Ringing
High-Performance Gaming Motherboards
Fairchild SyncFET (Integrated Schottky Diode)
Compact Blade Servers, V-Core and Non-V-Core
Technology in the Low-Side MOSFET
DC-DC Converters
Integrated Bootstrap Schottky Diode
Desktop Computers, V-Core and Non-V-Core
DC-DC Converters
Adaptive Gate Drive Timing for Shoot-through
Protection
Workstations
Under-Voltage Lockout (UVLO)
High-Current DC-DC Point-of-Load (POL)
Converters
Optimized for Switching Frequencies up to 1MHz
Networking and Telecom Microprocessor Voltage
Low-Profile SMD Package
Regulators
Fairchild Green Packaging and RoHS Compliant
Small Form-Factor Voltage Regulator Modules
Based on the Intel 4.0 DrMOS Standard
Ordering Information
Part Current Input Switching
Package Top Mark
Number Rating Voltage Frequency
40-Lead, Clipbond PQFN DrMOS,
FDMF6705V 40A 12V 1000kHz FDMF6705V
6.0x6.0mm Package
2011 Fairchild Semiconductor Corporation www.fairchildsemi.com
FDMF6705V Rev. 1.0 2