Product Summary

The XSTM DrMOS FDMF6704 is Fairchild next-generation fullyoptimized ultra-compact integrated MOSFET plus driver power stage solution for high current, high frequency synchronous buck DC-DC applications. The FDMF6704 DrMOS integrates a driver IC, two power MOSFETs and a bootstrap Schottky diode into a thermally enhanced compact 6 mm x 6 mm MLP package. With an integrated approach, the complete switching power stage is optimized with regards to driver and MOSFET dynamic performance, system inductance and RDS(ON). This greatly reduces the package parasitics and layout challenges associated with conventional discrete solutions. The driver IC incorporates advanced features such as SMOD. PWM input is Tri-State compatible. A 5 V gate drive and an improved PCB interface [Low Side MOSFET exposed pad] ensure higher performance. This FDMF6704 is compatible with the new Intel 6 mm x 6 mm DrMOS specification.

Parametrics

FDMF6704 absolute maximum ratings: (1)VCIN, VDRV, DISB#, PWM, SMOD#, LDRV to CGND: 6 V; (2)VIN to PGND, CGND: 27 V; (3)BOOT, HDRV to VSWH: 6 V; (4)BOOT, VSWH, HDRV to GND: 27 V; (5)BOOT to VDRV: 22 V; (6)IO(AV) VIN = 12 V, VO = 1.3 V: fSW = 350 kHz 35 A; fSW = 1 MHz 32 A; (7)IO(peak): 80 A; (8)RqJPCB Junction to PCB Thermal Resistance: 3.75 ℃/W; (9)Operating and Storage Junction Temperature Range: -55 150 ℃.

Features

FDMF6704 features: (1)Ultra- compact thermally enhanced 6 mm x 6 mm MLP package 84 % smaller than conventional discrete solutions.; (2)Synchronous driver plus FET multichip module.; (3)High current handling of 35 A.; (4)Over 93 % peak efficiency.; (5)Tri-State PWM input.; (6)Fairchild PowerTrench?5 technology MOSFETs for clean voltage waveforms and reduced ringing.; (7)Optimized for high switching frequencies of up to 1 MHz.; (8)Skip mode SMOD [low side gate turn off] input.; (9)Fairchild SyncFETTM [integrated Schottky diode] technology in the low side MOSFET.; (10)Integrated bootstrap Schottky diode.; (11)Adaptive gate drive timing for shoot-through protection.; (12)Driver output disable function [DISB# pin].; (13)Undervoltage lockout (UVLO).; (14)Fairchild Green Packaging and RoHS compliant. Low profile SMD package.

Diagrams

FDMF6704 Power Train Application Circuit

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
FDMF6704
FDMF6704

Fairchild Semiconductor

Power Driver ICs Xtra Small High Perf & High Freq DrMOS

Data Sheet

0-2150: $0.92
2150-3000: $0.88
3000-6000: $0.85
FDMF6704A
FDMF6704A

Fairchild Semiconductor

Power Driver ICs Xtra Sm DrMOS Module High Perf & Freq

Data Sheet

0-2260: $1.18
2260-3000: $1.18
3000-5000: $1.13
FDMF6704V
FDMF6704V

Fairchild Semiconductor

Power Driver ICs Xtr Sm Hi-Perf/ Hi-Eff DrMOS Module

Data Sheet

0-1: $1.85
1-25: $1.49
25-100: $1.35
100-250: $1.22