Alpha & Omega Semiconductor, Ltd. LED Drivers AOZ1083CI#A

The AOZ1083CI#A is a high-efficiency, 1.2 A buck LED driver designed for general lighting applications. It operates within a wide input voltage range of 3 V to 26 V and features a fixed switching frequency of 1.5 MHz, which helps reduce the size of external inductors and capacitors. The device provides up to 95% efficiency and includes internal compensation, soft start, and cycle-by-cycle current limiting for enhanced performance and reliability. The LED current feedback voltage is 280 mV with ¬±5% accuracy, minimizing power dissipation in the external sense resistor. The AOZ1083CI#A is housed in a compact SOT23-6L package, making it suitable for space-constrained applications. It is rated for ambient temperatures from -40 ¬8C to +85 ¬8C and includes protection features such as short-circuit protection and thermal shutdown. Typical applications include point-of-load DC/DC conversion, set-top boxes, and various consumer electronics.