FDMF6700 Driver plus FET Multi-chip Module
May 2007
FDMF6700
Driver plus FET Multi-chip Module
Benefits
Fully optimized system efficiency. Higher efficiency levels
are achievable compared with conventional discrete
components.
Space savings of up to 50% PCB versus discrete solutions.
Higher frequency of operation.
Simpler system design and board layout. Reduced time in
component selection and optimization.
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General Description
The FDMF6700 is a fully optimized integrated 12V Driver plus
MOSFET power stage solution for high current synchronous
buck DC-DC applications. The device integrates a driver IC and
two Power MOSFETs into a space saving, 6mm x 6mm, 40-pin
Power66鈩?package. Fairchild Semiconductor鈥檚 integrated
approach optimizes the complete switching power stage with
regards to driver to FET dynamic performance, system
inductance and overall solution ON resistance. Package
parasitics and problematical layouts associated with
conventional discrete solutions are greatly reduced. This
integrated approach results in significant board space saving,
therefore maximizing footprint power density. This solution is
based on the Intel鈩?DrMOS specification.
Features
12V typical Input Voltage
Output current up to 25A
500KHz switching frequency capable
Internal adaptive gate drive
Integrated bootstrap diode
Peak Efficiency >85%
Under-voltage Lockout
Output disable for lost phase shutdown
Low profile SMD package
RoHS Compliant
Applications
Desktop and server VR11.x V-core and non V-core buck
converters.
CPU/GPU power train in game consoles and high end
desktop systems.
High-current DC-DC Point of Load (POL) converters
Networking and telecom microprocessor voltage regulators
Small form factor voltage regulator modules
Powertrain Application Circuit
12V
C
VCC
VCIN
DISB
PWM
Input
DISB
VIN
BOOT
C
BOOT
PWM
CGND
VSWH
PGND
C
OUT
OUTPUT
Figure 1. Powertrain Application Circuit
Ordering Information
Current Rating
Max
[A]
25
Input Voltage
Typical
[V]
12
1
Frequency
Max
[KHz]
500
Device
Marking
FDMF6700
www.fairchildsemi.com
Part
FDMF6700
漏2007 Fairchild Semiconductor Corporation
FDMF6700 Rev. B