The low-power DC-DC has a continuous flow secondary built in, and the reason is that simple. As long as the topology principle is the same, all need to give the inductor continuous...
DC-DC chip continuous current diode problem. Why don't some chips need a diode?
The low-power DC-DC has a continuous flow secondary built in, and the reason is that simple. As long as the topology principle is the same, all need to give the inductor continuous flow, but some IC built-in, high-power output can not be built in.