AOZ2263QI-15

AOZ2263QI-15 28V/12A Synchronous EZBuckTM Regulator General Description The AOZ2263QI-15 is a high-efficiency, easy-to-use DC/ DC synchronous buck regulator that operates up to 28V. The device is capable of supplying 12A of continuous output current with an output voltage adjustable down to 0.8V (±1.0%). A proprietary constant on-time PWM control with input feed-forward results in ultra-fast transient response while maintaining relatively constant switching frequency over the entire input voltage range. The on-time can be externally programmed up to 2.6µs. The device features multiple protection functions such as VCC under-voltage lockout, cycle-by-cycle current limit, output over-voltage protection, short-circuit protection, and thermal shutdown. The AOZ2263QI-15 is available in a 4mm x 4mm QFN22L package and is rated over a -40°C to +85°C ambient temperature range. Features  Wide input voltage range – 2.7V to 28V  12A continuous output current  Output voltage adjustable down to 0.8V (±1.0%)  Low RDS(ON) internal NFETs – 18m high-side – 7m low-side  Constant On-Time with input feed-forward  Programmable on-time up to 2.6µs  Selectable PFM light load operation  Ceramic capacitor stable  Adjustable soft start  Ripple reduction  Power Good output  Integrated bootstrap diode  Cycle-by-cycle current limit  Short-circuit protection  Thermal shutdown  Thermally enhanced 4mm x 4mm QFN-22L package Applications  Portable computers  Compact desktop PCs  Servers ...