AOZ1083CI

Overview

The AOZ1083CI is a single-output DC-DC step-down (buck) LED driver IC manufactured by Alpha & Omega Semiconductor Inc. It integrates an internal power switch and supports PWM dimming for precise current regulation. The device operates within a supply voltage range of 4.5V to 36V and delivers up to 1.2A of output current. It is housed in a compact SOT-23-6 package, designed for surface-mount installation. The component functions as a regulated buck converter optimized for driving LEDs in lighting applications.

Feature Summary

• Integrates internal power switch for compact design
• Supports PWM dimming control for brightness adjustment
• Regulated step-down topology for stable LED drive

Applications

• General LED lighting systems
• Signage illumination
• Backlighting drivers

Procurement Notes

Verify the specific ordering suffix and package variant against the official datasheet, as availability may vary by region. Confirm that the requested part matches the exact electrical specifications required for the target circuit design. Ensure compliance with RoHS3 standards and check for any obsolete status indicators from the manufacturer before finalizing procurement orders.

Selection Notes

Select this component when a small form factor is required for low-power LED applications. The integrated switch eliminates external inductor and diode requirements, simplifying PCB layout. Ensure the input voltage range aligns with the system power supply and that the thermal performance of the SOT-23-6 package meets the application's heat dissipation needs.

Part Context

This part belongs to the AOZ1083 series of LED drivers from Alpha & Omega Semiconductor. It shares functional similarities with other members like the AOZ1084DI but differs in packaging and pinout configuration. The series utilizes EZBuck technology to provide efficient power conversion in a minimal footprint suitable for portable and space-constrained electronic devices.

Replacement Considerations

Direct substitutes include the AOZ1083CI#A variant, which maintains identical electrical characteristics. Other compatible parts within the same family may offer different package options such as DFN or QFN formats. Verify pin compatibility and thermal resistance when considering alternative packages from the same manufacturer.