3 Component Selection - Buck Converter

Components chosen in the buck converter, shown in Figure 3-1, have to be correctly dimensioned based on the needs of the rest of the system. As Switch mode regulation is inherently imperfect for generating a constant stable output voltage, some variation is to be expected in regards to the output voltage and current. Table 3-1 shows the parameters that must be specified to calculate the values of the components in the circuit. Based on the needs of the system, the designer decides the accepted limits for these variations, along with the operating voltages and power ratings.