AOZ23655QI Datasheet | Alpha & Omega Semiconductors

Description The AOZ23655QI is a high-efficiency, easy-to-use DC/DC synchronous buck regulators capable of operation from a 4V to 28V input bus. The device is capable of supplying 18A of continuous output current with an output voltage adjustment from 0V to 1.8V by controlling VID0 and VID1 signals. 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 devices feature 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 AOZ23655QI is available in a 5mm×5mm QFN-31L package and is rated over a -40°C to +85°C ambient temperature range. Features - Wide input voltage range - 4V to 28V - Support Intel ITDC up to 18A - Support Intel ICCMAX up to 45A - 2 bits programmable output voltage adjustable from 0V to 1.8V - Integrated high performance trench MOSFETs capable of : - High peak current - Up to 90A with 10ms on pulse - Up to 120A with 10μs on pulse - Low RDS(ON) internal NFETs - 6.5mΩ high-side - 3mΩ low-side - Constant On-Time with input feed-forward - Programmable frequency up to 2.6μs - Selectable PFM light load operation - Adjustable load-line pensation - High accuracy current monitor - Remote sense - Ceramic capacitor stable - Fixed soft start - Power Good output - Integrated bootstrap diode - Cycle-by-cycle current limit - Short-circuit protection - Over voltage protection - Thermal shutdown - Thermally enhanced 31-pin 5mm×5mm QFN Applications - Portable puters - pact desktop PCs - Servers - Networking equipment Green Product Rev. 1.1 May...