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.
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 that allows the output voltage to be adjusted from 1.3V to 3.5V in binary steps. The device includes a high-precision internal reference digitally trimmed to ensure the selected output voltage is within +/-1% over line and temperature variations.
| Output Voltage Range | 1.3V to 3.5V |
|---|---|
| Output Accuracy | +/-1% |
| Operating Frequency | 50kHz to 1MHz |
| Supply Voltage Range | 4.5V to 12V |
| Maximum Junction Temperature | 150 °C |
| Free Running Frequency | 200 kHz |
The device ensures the selected output voltage to within +/-1% over line and temperature variations.
The soft start capacitor is discharged and the system works in hiccup mode.