AOZ5019
High-Current, High-Performance
DrMOS Power Module
General Description
Features
The AOZ5019 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
4.5 V to 25 V input voltage range
4.5 V to 5.5 V driver supply range
Up to 30 A output current
Up to 1.5 MHz PWM operation
Tri-state PWM input
Undervoltage protection
R
to minimize conduction losses.
DS(ON)
Integrated boot supply diode
Diode Emulation mode of operation
Small 5x3.5 QFN-23L package
The AOZ5019 is intended for use with TTL and tri-state
compatible, which allows both power MOSFETs to be
turned off.
Applications
A number of features are provided making the AOZ5019
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 pin-out is
optimized for low inductance routing of the converter
keeping the parasitics and their effects to the minimum.
Servers
Notebook computers
VRMs for motherboards
Point of load DC/DC converters
Memory and graphic cards
Video gaming consoles
NOT RECOMMENDED FOR NEW DESIGNS
Typical Application Circuit
VIN
AOZ5019
VIN
+5V
5V to 25V
VCC
BOOT
Cboot
PWM
SMOD
Drive Logic
and
Dead Time
Control
Lout
VOUT
Cout
VSWH
PWM
Controller
EN
Cin
CGND
PGND
CGND
PGND
Rev. 3.0 May 2018
www.aosmd.com
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