APW7085

APW7085 2A, 26V, 380kHz, Asynchronous Step-Down Converter Features Wide Input Voltage from 4.5V to 26V Output Current up to 2A Adjustable Output Voltage from 0.8V to 90%VIN - 0.8V Reference Voltage - ±2.5% System Accuracy 100mΩ Integrated P-Channel Power MOSFET High Efficiency up to 91% - Pulse-Skipping Mode (PSM) / PWM Mode Operation Current-Mode Operation - Stable with Ceramic Output Capacitors - Fast Transient Response Power-On-Reset Monitoring Fixed 380kHz Switching Frequency in PWM Mode Built-in Digital Soft-Start Output Current-Limit Protection with Frequency Foldback 70% Under-Voltage Protection Over-Temperature Protection <5µA Quiescent Current during Shutdown General Description The APW7085 is a 2A, asynchronous, step-down converter with integrated 100mΩ P-channel MOSFET. The device, with current-mode control scheme, can convert 4.5~26V input voltage to the output voltage adjustable from 0.8 to 90% VIN to provide excellent output voltage regulation. The APW7085 regulates the output voltage in automatic PSM/PWM mode operation, depending on the output current, for high efficiency operation over light to full load current. The APW7085 is also equipped with power-onreset, soft-start, and whole protections (under-voltage, over- temperature, and current-limit) into a single package. In shutdown mode, the supply current drops below 5µA. This device, available in an 8-pin SOP-8 package, provides a very compact system solution with minimal exte...