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FDMF8705 fiches techniques PDF

Fairchild Semiconductor - Driver plus FET Multi-chip Module

Numéro de référence FDMF8705
Description Driver plus FET Multi-chip Module
Fabricant Fairchild Semiconductor 
Logo Fairchild Semiconductor 





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FDMF8705 fiche technique
April 2007
FDMF8705
Driver plus FET Multi-chip Module
tm
Benefits
General Description
„ Fully optimized system efficiency. Higher efficiency levels
The FDMF8705 is a fully optimized integrated 12V Driver plus
are achievable compared with conventional discrete
MOSFET power stage solution for high current synchronous
components.
buck DC-DC applications. The device integrates a driver IC and
„ 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.
two Power MOSFETs into a space saving, 8mm x 8mm, 56-pin
Power88™ package. Fairchild Semiconductor’s integrated
approach optimizes the complete switching power stage with
regards to driver to FET dynamic performance, system
inductance and overall solution ON resistance. Package
Features
parasitics and problematical layouts associated with
conventional discrete solutions are greatly reduced. This
„ 12V typical Input Voltage
„ Output current up to 18A
„ 500KHz switching frequency capable
integrated approach results in significant board space saving,
therefore maximizing footprint power density. This solution is
based on the Intel™ DrMOS specification.
„ Internal adaptive gate drive
Applications
„ Integrated bootstrap diode
„ Peak Efficiency >85%
„ Under-voltage Lockout
„ Output disable for lost phase shutdown
„ Low profile SMD package
„ RoHS Compliant
„ Desktop and server 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
www.DataSheet4„U.coSm mall form factor voltage regulator modules
Powertrain Application Circuit
12V
CVCC
DISB
PWM
Input
VCIN
DISB
VIN
BOOT
PWM
VSWH
CGND PGND
CBOOT
OUTPUT
COUT
Figure 1. Powertrain Application Circuit
Ordering Information
Part
FDMF8705
Current Rating
Max
[A]
18
Input Voltage
Typical
[V]
12
Frequency
Max
[KHz]
500
©2007 Fairchild Semiconductor Corporation
FDMF8705 Rev. C
1
Device
Marking
FDMF8705
www.fairchildsemi.com

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