Hey guys need some help im trying to take 12v and step it down to 5 with only 450 mah from a barrel jack dc power input while adding a over/under current protection circuit as well as thermal protection i.e. automatic shutdown but im literally just getting started wold anybody mind just drawing out a "diagram for idiots" kinda thing or just to point me in the direction of one? thanks but help of any kind at all would be helpfu;