Description
The IR3871 SupIRBuckTM is an easy-to-use, fully integrated and highly efficient DC/DC voltage regulator. The onboard constant on time hysteretic controller and MOSFETs make IR3871 a space-efficient solution that delivers up to 8A of precisely controlled output voltage in 60°C ambient temperature applications without airflow.

Features
◾ Input Voltage Range: 3V to 26V
◾ Output Voltage Range: 0.5V to 12V
◾ Continuous 8A Load Capability
◾ Constant On-Time control
◾ Excellent Efficiency at very low output current levels
◾ Compensation Loop not required
◾ Programmable switching frequency, soft start, and over current protection
◾ Power Good Output
◾ Precision Voltage Reference (0.5V, +/-1%)
◾ Pre-bias Start Up
◾ Under/Over Voltage Fault Protection
◾ Ultra small, low profile 5 x 6mm QFN Package

Applications
◾ Notebook and desktop computers
◾ Game consoles
◾ Consumer electronics – STB, LCD, TV, printers
◾ General purpose POL DC-DC converters