The LND-7800/78L00 is Linear Dimensions' version of the popular LND-7800 series low dropout regulator family. These devices offer voltage regulation at extremely low cost. The devices are particularly useful in applications such as wall adaptors, toys, or wall plugged devices which aren't power critical but which require power regulation. These devices are available in a variety of voltage varieties including 5, 6, 8, 9, 12, 15, 18 and 24V. How does it work?