HTC LM78LXX series of fixed-voltage monolithic integrated-circuit voltage regulators is designed for a wide range of applications. These applications include on-card regulation for elimination of noise and distribution problems associated with single-point regulation. In addition, they can be used with power-pass elements to make high current voltage regulators.

LM78LXX can deliver up to 100mA of output current. The internal limiting and thermal shutdown features of this regulator make it essentially immune to overload. Current limiting is include to limit the peak output current (250mA ~ 300mA) to a safe value. When used as a replacement for a zener diode-resistor combination, an effective improvement in output impedance can be obtained together with lower-bias current.