Fairchild FDMF6820A User's Manual

6820A xtra-S all, H ig -P erfo rm an ce, H ig -F req en cy D r M le

April 2012

FDMF6820A — Extra-Small, High-Performance, High-Frequency Dr MOS Module Benefits

Description

 Ultra-Compact 6x6mm PQFN, 72% Space-Saving The XS™ Dr MOS family is Fairchild’s next-generation, Compared to Conventional Discrete Solutions fully optimized, ultra-compact, integrated MOSFET plus

driver power stage solution for high-current, high-

 Fully Optimized System Efficiency

frequency, synchronous buck DC-DC applications. The

 Clean Switching Waveforms with Minimal Ringing FDMF6820A integrates a driver IC, two power

MOSFETs, and a bootstrap Schottky diode into a

 High-Current Handling

thermally enhanced, ultra-compact 6x6mm package.

Features

With an integrated approach, the complete switching power stage is optimized with regard to driver and

 Over 93% Peak-Efficiency

MOSFET dynamic performance, system inductance,  High-Current Handling: 60A and power MOSFET RDS(ON). XS™ Dr MOS uses Fairchild's high-performance Power Trench® MOSFET

 High-Performance PQFN Copper-Clip Package

technology, which dramatically reduces switch ringing,  3-State 3.3V PWM Input Driver eliminating the need for snubber circuit in most buck converter applications.

 Skip-Mode SMOD# (Low-Side Gate Turn Off) Input

A driver IC with reduced dead times and propagation

 Thermal Warning Flag for Over-Temperature

delays further enhances the performance. A thermal

Condition

warning function warns of a potential over-temperature  Driver Output Disable Function (DISB# Pin) situation. The FDMF6820A also incorporates a Skip Mode (SMOD#) for improved light-load efficiency. The

 Internal Pull-Up and Pull-Down for SMOD# and

FDMF6820A also provides a 3-state 3.3V PWM input for

DISB# Inputs, Respectively

compatibility with a 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 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 Converters  Low-Profile SMD Package  Networking and Telecom Microprocessor Voltage

Regulators

 Fairchild Green Packaging and Ro HS Compliance

 Small Form-Factor Voltage Regulator Modules

 Based on the Intel® 4.0 Dr MOS Standard

Ordering Information

Part Number Current Rating Package Top Mark FDMF6820A 60A 40-Lead, Clipbond PQFN Dr MOS, 6.0mm x 6.0mm Package FDMF6820A

© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com FDMF6820A • Rev. 1.0.2