General Description

The AOZ5117QI-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. AOZ5117QI-01 comes with low noise

technology enhancement at switching node to reduce

noise interference.

The AOZ5117QI-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

AOZ5117QI-01 a highly versatile power module. The

boot-strap 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.

特性 Features

? 4.5V to 25V power supply range

? 4.5V to 5.5V driver supply range

? 60A 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