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FDMF6730
Driver plus FET Multi-chip Module
August 2008
FDMF6730 Driver plus FET Multi-chip Module
Features Over 95% efficiency Internal 5V regulator for gate drive 6V-16V input range 1MHz max operating frequency SMOD operation capability for light load efficiency 5A current capability (10A with PASS FET) Current limit set by RDSON sensing to minimize power losses Integrated bootstrap diode
Applications Ultra Mobile PC Notebook Computers
General DescriptionThe FDMF6730 is a high efficiency Driver plus MOSFET power
stage solution optimized for Ultra Mobile PC (UMPC) system
power voltage supplies. It is fully compliant with the Intel Ultra-
Mobile Driver MOS (uDrMOS) Specification. The MOSFETs and
driver have been optimized to perform with high efficiency at
light and medium loads, ideal for compact PC devices.
The internal driver IC integrates two highly efficient LDOs for
internal gate-drive and external circuitry. The bootstrap diode is
also integrated within the IC. When operating with a single low
side MOSFET the uDrMOS module is capable of delivering up
to 5A of continuous current. The PASS transistor may be easily
routed in parallel with the low side MOSFET to provide up to
10A. The module also incorporates an over current protection
flag from an RDSON current sense architecture.
The device comes in a 6X6 Power QFN package for improved
thermal performance.
LDO OUT
LDO ENABLE
LDO 5V OUT
PWM OUT
VIN
VOUT
DRIVE LS
DRIVE HS
LDO ADJ
LDO OUT
LDO EN
LDO 5V
VCC VIN
BOOT
VSWH
PGND
LDRV
G_PASS
D_PASS
S_PASSCS_PROG
CS_OUT
CGND
FDMF6730
LDO OUT
LDO ENABLE
LDO 5V OUT
PWM OUT
VIN
VOUT
DRIVE LS
DRIVE HS
LDO ADJ
LDO OUT
LDO EN
LDO 5V
VCC VIN
BOOT
VSWH
PGND
LDRV
G_PASS
D_PASS
S_PASSCS_PROG
CS_OUT
CGND
FDMF6730
Typical Application
Ordering Information
Current Rating
Max
Input Voltage
Typical
Frequency
Max
DeviceFigure 1. Power Train Application Circuit
