Z1051PI PDF Datasheet – Buck Regulator – AOZ1051PI

This post explains for the regulator.

The Part Number is Z1051PI, AOZ1051PI.

The function of this semiconductor is Synchronous Buck Regulator.

The package is SO-8 Pin Type

Manufacturer: Alpha & Omega Semiconductors

Preview images :Z1051PI datasheet regulator


The Z1051PI is a high efficiency, easy to use, 3 A synchronous buck regulator. The AOZ1051PI works from 4.5 V to 18 V input voltage range, and provides up to 3 A of continuous output current with an output voltage adjustable down to 0.8 V. The AOZ1051PI comes in an exposed pad SO-8 package and is rated over a -40 °C to +85 °C operating ambient temperature range.


1. 4.5 V to 18 V operating input voltage range

2. Synchronous Buck: 70 mΩ internal high-side switch and 40 mΩ internal low-side switch (at 12 V)

3. Up to 95 % efficiency

4. External soft start

5. Output voltage adjustable to 0.8 V

6. 3 A continuous output current

7. 500 kHz PWM operation

8. Cycle-by-cycle current limit

9. Pre-bias start-up

10. Short-circuit protection

11. Thermal shutdown


Z1051PI pdf pinout


1. Point of load DC/DC converters


3. Set top boxes

4. DVD and Blu-ray players/recorders

5. Cable modems

Z1051PI PDF Datasheet