A LM7805 Voltage Regulator is a voltage regulator that outputs +5 volts.
An easy way to remember the voltage output by a LM78XX series of voltage regulators is the last two digits of the number. A LM7805 ends with "05"; thus, it outputs 5 volts. The "78" part is just the convention that the chip makers use to denote the series of regulators that output positive voltage. The other series of regulators, the LM79XX, is the series that outputs negative voltage.
The LM7805, like most other regulators, is a three-pin IC.
Pin 1 (Input Pin): The Input pin is the pin that accepts the incoming DC voltage, which the voltage regulator will eventually regulate down to 5 volts.
Pin 2 (Ground): Ground pin establishes the ground for the regulator.
Pin 3 (Output Pin): The Output pin is the regulated 5 volts DC.
Write a review
Note: HTML is not translated!
Rating: Bad Good
Enter the code in the box below: