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參數資料
| 型號： | FDMF8705 |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | MOSFETs |
| 英文描述： | Driver plus FET Multi-chip Module |
| 中文描述： | HALF BRDG BASED MOSFET DRIVER, QCC56 |
| 封裝： | 8 X 8 MM, ROHS COMPLIANT, MO-220WLLD-5, SMD-56 |
| 文件頁數： | 1/13頁 |
| 文件大小： | 742K |
| 代理商： | FDMF8705 |
2007 Fairchild Semiconductor Corporation
FDMF8705 Rev. C
1
www.fairchildsemi.com
F
tm
April 2007
FDMF8705
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.
Features
12V typical Input Voltage
Output current up to 18A
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
General Description
The FDMF8705 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, 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
parasitics
and
problematical
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 DrMOS specification.
layouts
associated
with
Applications
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
Small form factor voltage regulator modules
Ordering Information
Part
Current Rating
Max
[A]
Input Voltage
Typical
[V]
Frequency
Max
[KHz]
Device
Marking
FDMF8705
18
12
500
FDMF8705
Powertrain Application Circuit
Figure 1. Powertrain Application Circuit
DISB
PWM
CGND
PGND
VCIN
VIN
BOOT
VSWH
DISB
PWM
Input
C
VCC
12V
C
BOOT
C
OUT
OUTPUT
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