APW7070

APW7070/A 3A, 20V, 380kHz, Synchronous Step-Down Converter Features Wide Input Voltage from 4.75V to 20V Output Current up to 3A Adjustable Output Voltage from 0.8V to 90%VIN - 0.8V Reference Voltage - ±2.5% System Accuracy 80mΩ Integrated MOSFETs High Efficiency up to 93% Current-Mode Operation - Stable with Ceramic Output Capacitors - Fast Transient Response Power-On-Reset Monitoring Fixed 380kHz Switching Frequency in PWM Mode Automatic Pulse-Skipping Mode (PSM)/PWM Mode Operation (APW7070A) Forced-PWM Operation (APW7070) Built-in Digital Soft-Start Output Current-Limit Protection with Frequency Foldback 70% Under-Voltage Protection Over-Temperature Protection 118% Over-Voltage Protection <5µA Quiescent Current during Shutdown Thermal-Enhanced SOP-8P Package Pb-Free Available as an Option Lead Free and Green Devices Available (RoHS Compliant) General Description The APW7070/A is a 3A, synchronous, step-down converter with integrated 80mΩ MOSFETs. The device, with current-mode control scheme, can convert 4.75~20V input voltage to the output voltage adjustable from 0.8 to 90% VIN to provide excellent output voltage regulation. The APW7070A regulates the output voltage in an automatic PSM/PWM mode operation, depending on the output current, for high efficiency operation over light to full load current. The APW7070 always works in a ForcedPWM mode with constant frequency over full output current range for low-noise requirements.The APW70...