The AOZ8809ADI-05 is part of Alpha & Omega's Power Management IC (PMIC) product range. It is a synchronous step down PMIC that converts an input voltage of 4.5V to 28V to a regulated output voltage as low as 0.8V at up to 4A. Its switching frequency can be adjusted between 300kHz to 2MHz, allowing it to be optimized for both light load performance and efficiency at heavier loads. It features robust short circuit protection, over-temperature protection, over-load protection, under-voltage protection, and has current-mode operation for improved stability and transient response. It has a compact 22-Pin HSOP package, making it ideal for space-constrained designs.