Linear regulators are craptastic, inefficient, and ancient like 7805 circuits. Sure you can throw them together with a few parts, but why? Apart from extreme PSUs used only briefly, they will rapidly eat more electricity than the added cost of switching components.
Switching DC/DC is generally what you want. Buck -> V down, boost -> V up, buck-boost -> V up or down (sometimes 2 PSUs or 1 with shared components).
I have a 90VDC to 12VDC 10A buck converter to power a train air horn on my electric scooter. It's in a solid-state, ruggedized, industrial form-factor that's potted into a heatsink.
Switching DC/DC is generally what you want. Buck -> V down, boost -> V up, buck-boost -> V up or down (sometimes 2 PSUs or 1 with shared components).
I have a 90VDC to 12VDC 10A buck converter to power a train air horn on my electric scooter. It's in a solid-state, ruggedized, industrial form-factor that's potted into a heatsink.