Over on Hackaday.IO our hacker [bornach] has his entry into the Component Abuse Challenge: Inductors are Wireless Power Sources. Some time back [bornach] was gifted a Qi wireless charging base station ...
Measuring just 1 mm high in a ThinSOT-23 package and requiring no inductor, the REG71055 buck-boost converter delivers 30 mA of output current for white LED backlights and LCDs in single-cell, Li-Ion ...