FDMF6821A Series

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

Catalog

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

Part	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]	Fault Protection	Rds On (Typ)	Current - Output / Channel	Features	Interface	Load Type	Supplier Device Package	Applications	Mounting Type	Voltage - Supply [Min]	Voltage - Supply [Max]	Technology	Voltage - Load [Min]	Voltage - Load [Max]
ON Semiconductor FDMF6821A	40-PowerTFQFN	150 °C	-40 °C	Over Temperature Shoot-Through UVLO	1 Ohm 1 Ohm	60 A	Bootstrap Circuit Status Flag	PWM	Inductive	40-PQFN (6x6)	Synchronous Buck Converters	Surface Mount	4.5 V	5.5 V	DrMOS	3 V	16 V

Catalog

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

Key Features

• Over 93% Peak-Efficiency

• High-Current Handling: 60 A

• High-Performance PQFN Copper-Clip Package

• 3-State 3.3 V 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 1 MHz

• Fairchild Green Packaging and RoHS Compliance

• Low-Profile SMD Package

• Based on the Intel® 4.0 DrMOS Standard

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 FDMF6821A integrates a driver IC, two power MOSFETs, and a bootstrap Schottky diode into a thermally enhanced, ultra-compact 6x6 mm 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 FDMF6821A also incorporates a Skip Mode (SMOD#) for improved light-load efficiency. The FDMF6821A also provides a 3-state 3.3 V PWM input for compatibility with a wide range of PWM controllers.