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IC manufacturers Alpha & Omega Semiconductor

IC manufacturers (84)

Alpha & Omega Semiconductor AOZ1283PI

EZBuck™ 2.5A Simple Buck Regulator


TopologyBuck Converter
Input voltage3-36 V
Switching frequency200-2000 kHz
Output 136 V / 2.5 A
IC revision1.0


The AOZ1283 is a high voltage, high efficiency, simple to use, 2.5A buck regulator optimized for a variety of applications. The AOZ1283 works from a 3.0V to 36V input voltage range, and provides up to 2.5A of continuous output current. The output voltage is adjustable from 30V down to 0.8V.

The AOZ1283 integrates an N-channel high-side power MOSFET. The switching frequency can set from 200kHz to 2MHz with an external resistor. The soft-start time can be set with an external capacitor.


  • 3.0V to 36V operating input voltage range
  • 50mΩ internal NMOS
  • Up to 95% efficiency
  • Adjustable soft-start
  • Output voltage adjustable from 0.8V to 30V
  • 2.5A continuous output current
  • Adjustable switching frequency from 200kHz to 2MHz
  • Cycle-by-cycle current limit
  • Short-circuit protection
  • Over-voltage protection
  • Over-temperature protection
  • EPAD SO-8 package

Typical applications

  • Point-of-load DC/DC conversion
  • Set top boxes and cable modems
  • Telecom/Networking/Datacom equipment
  • LCD Monitors & TVs
  • DVD drives and HDDs