LM340 Datasheet | National Semiconductor

LM340/LM78XX Series 3-Terminal Positive Regulators July 2006 LM340/LM78XX Series 3-Terminal Positive Regulators General Description The LM140/LM340A/LM340/LM78XXC monolithic 3-terminal positive voltage regulators employ internal current-limiting, thermal shutdown and safe-area pensa- tion, making them essentially indestructible. If adequate heat sinking is provided, they can deliver over 1.0A output cur- rent. They are intended as fixed voltage regulators in a wide range of applications including local (on-card) regulation for elimination of noise and distribution problems associated with single-point regulation. In addition to use as fixed volt- age regulators, these...