FDMF6820B Series

Extra-Small, High-Performance, High-Frequency DrMOS Module

Catalog

Extra-Small, High-Performance, High-Frequency DrMOS Module

Part	Interface	Mounting Type	Package / Case	Fault Protection	Load Type	Features	Technology	Voltage - Supply [Min]	Voltage - Supply [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Supplier Device Package	Applications	Current - Output / Channel	Rds On (Typ)	Voltage - Load [Min]	Voltage - Load [Max]
ON Semiconductor FDMF6820B	PWM	Surface Mount	40-TFQFN Exposed Pad	Over Temperature Shoot-Through UVLO	Inductive	Bootstrap Circuit Status Flag	DrMOS	4.5 V	5.5 V	150 °C	-40 °C	40-PQFN (6x6)	Synchronous Buck Converters	55 A	1 Ohm 1 Ohm	3 V	16 V
ON Semiconductor FDMF6820B	PWM	Surface Mount	40-PowerTFQFN	Over Temperature Shoot-Through UVLO	Inductive	Bootstrap Circuit Status Flag	DrMOS	4.5 V	5.5 V	150 °C	-40 °C	40-PQFN (6x6)	Synchronous Buck Converters	55 A	1 Ohm 1 Ohm	3 V	16 V

Catalog

Extra-Small, High-Performance, High-Frequency DrMOS Module

Key Features

• Over 93% Peak-Efficiency

• High-Current Handling: 50A

• High-Performance PQFN Copper-Clip Package

• 3-State 3.3V 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

• Based on the Intel® 4.0 DrMOS Standard

• Fairchild Green Packaging and RoHS Compliance

Description

The XS™ DrMOS family is ON Semiconductor’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 FDMF6820B 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 RDS(ON). XS™ DrMOS uses ON Semiconductor'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 FDMF6820B also incorporates a Skip Mode (SMOD#) for improved light-load efficiency. The FDMF6820B also provides a 3-state 3.3V PWM input for compatibility with a wide range of PWM controllers.