General Description
AOZ5018QI 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.
AOZ5018QI uses a PWM input for accurate control of the
power MOSFETs switching activities, is compatible with
5V (CMOS) logic and supports Tri-State PWM.
A number of features are provided making the
AOZ5018QI a highly versatile power module. The
bootstrap diode is integrated in the driver. The Low-Side
MOSFET can be driven into diode emulation mode to
provide asynchronous operation and improve light-load
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
 5V PWM and Tri-State input compatible
 Under-Voltage LockOut protection
 FCCM control for Diode Emulation / CCM operation
 Standard 5mm x 5mm QFN-31L package

Applications
 Memory and graphic cards
 VRMs for motherboards
 Point of load DC/DC converters
 Video gaming consoles