General Description

The AOZ1053PI is a high efficiency, easy to use, 5A synchronous buck regulator. The AOZ1053PI works from 4.5V to 18V input voltage range, and provides up to 5A of continuous output current with an output voltage adjustable down to 0.8V.

The AOZ1053PI comes in an exposed pad SO-8 package and is rated over a -40°C to +85°C operating ambient temperature range.

Features

• 4.5V to 18V operating input voltage range

• Synchronous Buck: 55mΩ internal high-side switch and 19mΩ internal low-side switch (at 12V)

• Up to 95% efficiency

• External soft start

• Output voltage adjustable to 0.8V

• 5A continuous output current

• 450kHz PWM operation

• Cycle-by-cycle current limit

• Pre-bias start-up

• Short-circuit protection

• Thermal shutdown

• Exposed pad SO-8 package

Applications

• Point of load DC/DC converters

• LCD TV

• Set top boxes

• DVD and Blu-ray players/recorders

• Cable modems