General Description

The AOZ1281 is a high efficiency, simple to use, 1.8 A

buck regulator flexible enough to be optimized for a

variety of applications. The AOZ1281 works from a 3 V to

26 V input voltage range, and provides up to 1.8 A of

continuous output current. The output voltage is

adjustable down to 0.8 V. The fixed switching frequency

of 1.5 MHz PWM operation reduces inductor size.

Features

3 V to 26 V operating input voltage range

240 mΩ internal NMOS

High efficiency: up to 95

Internal compensation

1.8 A continuous output current

Fixed 1.5 MHz PWM operation

Internal soft start

Output voltage adjustable down to 0.8 V

Cycle-by-cycle current limit

Short-circuit protection

Thermal shutdown

Small size: DFN 2x2, 8L

Applications

Point of load DC/DC conversion

Set top boxes

DVD drives and HDD

LCD Monitors & TVs

Cable modems

Telecom/Networking/Datacom equipment