The L78xx series of three-terminal positivregulators is available in TO-220, TO-220TO-3 and D2PAK packages and several foutput voltages, making it useful in a wide of applications.
These regulators can prlocal on-card regulation, eliminating the distribution problems associated with singregulation.
Each type employs internal culimiting, thermal shut-down and safe area protection, making it essentially indestrucadequate heat sinking is provided, they cdeliver over 1 A output current.
Although dprimarily as fixed voltage regulators, thesdevices can be used with external compoobtain adjustable voltage and currents