The boost output voltage may be programmed as high as 105-V. A capacitor with a voltage rating of at least the boost output voltage must be selected. A 250-V rated 100-nF capacitor of the X5R or X7R type is recommended for the 105 V case because ceramic capacitors tend to come in ratings of 100 V or 250 V. The selected boost capacitor must have a minimum working capacitance of at least 50 nF. For boost voltages from 30 V to 80 V, a 100-V rated or 250-V rated, 100-nF capacitor is acceptable. For boost voltages less than 30 V, a 50-V, 0.22-µF capacitor is recommended.