I is the maximum current flowing through the inductor. The importance of saturation current lies in the fact that saturation of the inductor for a dcdc converter can lead to destructive consequences. Kemet Metcom High Saturation Power Inductors Improves How To Choose A Surface Mount Inductor For A Dc Dc Converter Preventing Start Up Issues Due To Output Inrush In Switching Inductors are an essential component of switching voltage regulators and synchronous buck converters as shown in figure 1. Inductor saturation in buck converter . An 1197selecting inductors for buck converters. Synchronous buck dcdc converter. December 21 2014 050959 pm without cycle by cycle current limiting or current mode control the inductor can saturate at turn on and that is why you need more headroom than simply output current plus half the ripple current plus 10. If ...