APW7085 Datasheet | ANPEC

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 380k Hz 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 pact system solution with minimal external ponents. 100 90 80 VOUT=5V Efficiency (%) SOP-8 Package Lead Free and Green Devices Available (Ro HS pliant) 70 60 50 40 30 20 10 0 0.001 0.01 0.1 1 10 VOUT=3.3V Applications - - - - - - - LCD Monitor / TV Set-Top Box Portable DVD Wireless LAN ADSL, Switch HUB Notebook puter Step-down Converters Requiring High Efficiency and 2A Output Current Output Current, IOUT (A) ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain the latest version of relevant information to...