General Description
The AOZ5118QI-01 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 is optimized
to achieve low capacitance and gate charge for fast
switching with low duty cycle operation. The Low-Side
MOSFET has ultra low ON resistance to minimize
conduction loss. AOZ5118QI-01 comes with low noise
technology enhancement at switching node to reduce
noise interference.
The AOZ5118QI-01 uses a PWM and SMOD# input for
accurate control of the power MOSFETs switching
activities, is compatible with 3V and 5V (CMOS) logic and
supports Tri-State PWM.
A number of features are provided making the
AOZ5118QI-01 a highly versatile power module. The
boot- strap switch is integrated in the driver. The Low-
Side MOSFET can be driven into diode emulation mode
to provide asynchronous operation and improve lightload
performance. The pin-out is also optimized for low
parasitics, keeping their effects to a minimum.

Features
 4.5V to 25V power supply range
 4.5V to 5.5V driver supply range
 65A continuous output current
- Up to 80A with 10ms on pulse
- Up to 120A with 10us on pulse
 Up to 2MHz switching operation
 3V/5V PWM and Tri-State input compatible
 Supports Intel® Power State 4
 Thermal Shutdown
 Under-Voltage LockOut protection
 SMOD# control for Diode Emulation / CCM operation
 Low Profile 5x5 QFN-31L package

Applications
 Notebook computers
 VRMs for motherboards
 Point of load DC/DC converters
 Video gaming consoles