FDMF6823B Datasheet, PDF (1/19 Pages) Fairchild Semiconductor – Extra-Small, High-Performance, High-Frequency DrMOS Module

April 2012
FDMF6823B — 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: 55A
 High-Performance PQFN Copper-Clip Package
 3-State 5V PWM Input Driver
 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 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 Compliance
 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 solution for high-current, high-
frequency, synchronous buck DC-DC applications. The
FDMF6823B integrates a driver IC, two power
MOSFETs, and a bootstrap Schottky diode into a
thermally enhanced, ultra-compact 6x6mm package.
With an integrated approach, the complete switching
power stage is optimized with regard 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 snubber circuit in most buck
converter applications.
A driver IC with reduced dead times and propagation
delays further enhances the performance. A thermal
warning function warns of a potential over-temperature
situation. The FDMF6823B also incorporates a Skip
Mode (SMOD#) for improved light-load efficiency. The
FDMF6823B also provides 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 Converters
 Networking and Telecom Microprocessor Voltage
Regulators
 Small Form-Factor Voltage Regulator Modules
Ordering Information
Part Number Current Rating
Package
FDMF6823B
55A
40-Lead, Clipbond PQFN DrMOS, 6.0mm x 6.0mm Package
Top Mark
FDMF6823B
© 2011 Fairchild Semiconductor Corporation
FDMF6823B • Rev. 1.0.2
www.fairchildsemi.com