General Description

AOZ5016QI 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.

AOZ5016QI 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

AOZ5016QI 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

 55A 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