The L6911B is a power supply controller specifically designed to provide high-performance DC/DC conversion for Pentium II Microprocessors. It features a precise 5-bit digital-to-analog converter (DAC) that allows for adjustable output voltage from 1.3V to 2.05V in 0.05V binary steps and from 2.1V to 3.5V in 0.1V binary steps. The high-precision internal reference, digitally trimmed, ensures the selected output voltage within +/-1% accuracy. The device provides excellent load transient response and stable output accuracy thanks to the window comparator system. It supports overvoltage protection and overcurrent protection. The operating frequency ranges from 50kHz to 1MHz. It meets Intel Pentium II specifications and includes a disable function.