7805 Datasheet provides information about the series of constant voltage, integrated circuits which regulate voltages and is blessed with a broad range of applications. The applications of such integrated circuits include on-card management for removing noise and distribution issues which are associated with single-point regulation. The maximum value of current delivered by such regulators is 1.5A. In order to keep them immune from overload, these regulators provide thermal- shutdown features and internal current limiting features. Apart from being a fixed-voltage regulator, such devices can be used with external components so as to obtain adjustable values of current and voltages. You can download 7805 Datasheet from this link.