General Description

The AOZ5166QI 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 (HS) MOSFET has

low capacitance and gate charge for fast switching with

low duty cycle operation. The Low-Side (LS) MOSFET

has ultra low RDS(ON) to minimize conduction losses.

The AOZ5166QI is intended for use with 5V (CMOS) and

Tri-state input compatibility by using both the PWM and

DISB# inputs for accurate control of the power

MOSFET’s switching activities.

A number of features are provided making the

AOZ5166QI a highly versatile power module. The boot

supply diode is integrated in the driver. The LS MOSFET

can be driven into diode emulation mode to provide

asynchronous operation when required. The pinout is

optimized for low parasitics, keeping their effects to the

minimum.

Features

 Fully complies with Intel DrMOS Rev 4.0 specifications

 4.5V to 18V input voltage range

 4.5V to 5.5V driver supply range

 Up to 60A output current

 Up to 1MHz PWM operation

 5V PWM / Tri-state input compatible

 Under-voltage lockout protection

 Single pin control for diode

 Emulation / CCM operation

 6mm x 6mm QFN-40L package

Applications

 Servers

 VRMs for Motherboards

 Point-of-Load DC/DC Converters

 Memory and Graphic Cards

 Video Gaming Consoles