7805 Three-terminal voltage regulator integrated circuit, electronic products, the common three-terminal voltage regulator integrated circuit has a positive voltage output of 78×× series and negative voltage output of 79×× series. As the name suggests, the three-terminal IC refers to this type of integrated circuit for voltage regulation, with only three pin outputs, which are input, ground and output. It looks like an ordinary triode, the standard package of the TO-220, and there is also a 9013-like TO-92 package. Because the three-terminal fixed integrated voltage regulator circuit is easy to use, it is often used in electronic production.
The power supply regulator chip 7805\/7905 is a typical integrated circuit module with three ends. With metal substrate cooling press mounting! The module is mostly used for processing boards with 5V power supply processors! Jokingly computer stabilizer block! Input voltage up to DC 12V! (Allowed)! Output within 5V -5%! Current 1A, maximum short time up to 3A! (Limit) It is best to install a radiator when the output exceeds 500 MA! 7805 Input\/output is positive! 7905 Input\/is negative! Face the logo! Left foot in, right foot out! Middle pin ground!