L7805CV, L7905CV, L7809CV, L7909CV, L7812CV, L7912CV, L7815CV, L7915CV, LM317T, LM337T
Linear Voltage Regulators provide a simple way to provide a practically stable DC voltage output from an unregulated DC voltage source. As compared to simple components such as zener diodes, they have better stability over a wider range of loads because of their in-built feedback error correction.
The adjustable ones allow you to set the desired voltage with just external resistors. Voltage regulators form part of most complex electronic systems which interface different devices with different ratings. They are also a good way of mimicking battery power from a rectified AC source.
NB: See the product pictures to find out more about the available packages along with their important specifications.