This paper presents the design and modeling of a square inductor for its integration in Buck converter
DC-DC. The first, we calculate the value of inductance. The second, we descript our inductor; dimensioning
and electrical model. A buck micro converter schematic simulation coupled with ideal and integrated
inductor was presented. This conceptual model of the buck is best understood in terms of the relation
between current and voltage of the inductor. Finely, we have simulated the electromagnetic effects in two
cases. The first case, an inductor in the air, the second case with substrate. Our geometry is created en 3D
space dimension