The LM2595 series may be used to change a regulated DC input voltage to an output voltage other than 3.3V, 5.0V, or 12V. In this application, the inductor’s volt-microsecond constant must be calculated in order to determine which inductor should be used. The formula shown in Step 1 calculates this value. Vsat is the internal switch saturation voltage, as given in the Texas Instruments LM2595 series data sheet. Review the inductor selection graph in the previous slide, then proceed to the practical design example.