The vast majority of electromechanical or semiconductor loads require stable dc-dc voltage conversion and tight regulation to operate reliably. The dc-dc converters that perform this function are commonly called point-of-load (PoL) regulators and are designed with a maximum and minimum input voltage specification defining their stable operating range. The power delivery network (PDN) to these regulators can vary in complexity based on the number and type of loads, overall system architecture, load power levels, voltage levels (conversion stages), as well as isolation and regulation requirements.

Read more about how fixed-ratio converters are often the best way of minimizing the electrical current