AOS AOZ1280CI

The AOZ1280 is a high efficiency, simple to use, 1.2 A buck regulator which is flexible enough to be optimized for a variety of applications. The AOZ1280 operates from a 3 V to 26 V input voltage range, and provides up to 1.2 A of continuous output current. The output voltage is adjustable down to 0.8 V. The fixed 1.5 MHz PWM switching frequency reduces inductor size. The AOZ1280 comes in a SOT23-6L package and is rated over a -40 °C to +85 °C operating ambient temperature range. The AOZ1280 is a current-mode step down regulator with integrated high side NMOS switch. It operates from a 3 V to 26 V input voltage range and supplies up to 1.2 A of load current. Features include: enable control, under voltage lock-out, internal soft-start, output over-voltage protection, over-current protection, and thermal shut down. The AOZ1280 is available in SOT23-6L package.

• 3 V to 26 V operating input voltage range
• 240 mΩ internal NMOS
• High efficiency: up to 95 %
• Internal compensation
• 1.2 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 SOT23-6L

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