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AOZ5007

Description
High-Current, High-Performance DrMOS Power Module
File Size832KB,16 Pages
ManufacturerAlpha & Omega Semiconductor
Websitehttp://www.aosmd.com/about
Download Datasheet View All

AOZ5007 Overview

High-Current, High-Performance DrMOS Power Module

AOZ5007
High-Current, High-Performance
DrMOS Power Module
General Description
The AOZ5007 is a high efficiency synchronous buck
power stage module consisting of two asymmetrical
MOSFETs and an integrated driver. The MOSFETs are
individually optimized for operation in the synchronous
buck configuration. The high side MOSFET has low
capacitance and gate charge for fast switching with low
duty cycle operation. The low side MOSFET has ultra low
R
DS(ON)
to minimize conduction losses.
The AOZ5007 is available with two PWM options.
AOZ5007QI is intended for use with TTL compatible
PWM inputs. AOZ5007QI-01 has lower thresholds on the
PWM signal and can operate with 3 V inputs. All other
parameters are identical for the two versions. Both
versions are tri-state compatible that allows both power
MOSFETs to be turned off.
A number of features are provided making the AOZ5007
a highly versatile power module. The boot supply diode is
integrated in the driver. The low side MOSFET can be
driven into diode emulation mode to provide
asynchronous operation when required. The pinout is
optimized for low inductance routing of the converter
keeping the parasitics and their effects to the minimum.
Features
Fully complies with Intel DrMOS Rev 4.0 specifications
4.5 V to 25 V input voltage range
4.5 V to 5.5 V driver supply range
Up to 50 A output current
Up to 1.5 MHz PWM operation
Tri state PWM input
Undervoltage protection
Integrated boot supply diode
Diode Emulation mode of operation
Thermal shutdown alarm with flag
Small 6x6 QFN-40L package
Applications
Servers
Notebook computers
VRMs for motherboards
Point of load DC/DC converters
Memory and graphic cards
Video gaming consoles
Typical Application Circuit
AOZ5007
+5V
VDRV
VCIN
VIN
BOOT
VIN
5V to 25V
Cboot
PWM
SMOD
DISB
THDN
PWM
Controller
Drive Logic
and
Dead Time
Control
Lout
VSWH
VOUT
Cin
CGND
PGND
Cout
CGND
PGND
Rev. 1.1 October 2011
www.aosmd.com
Page 1 of 16
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