General Description
The AOZ5516QI-02 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. The compact 5mm x 5mm QFN
package is optimally chosen and designed to minimize
parasitic inductance for minimal EMI signature.
The AOZ5516QI-02 uses PWM and/or FCCM 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
AOZ5516QI-02 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 / Tri-State input compatible
 Under-Voltage LockOut protection
 FCCM pin control for Shutdown / Diode Emulation /
CCM operation
 Standard 5mm x 5mm QFN-31L package

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