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Isnin, Jun 03, 2013

7805 Datasheet 5V DC Voltage Regulator Data Sheet / Specs



The 7805 provides circuit designers with an easy way to regulate DC voltages to 5v. Here are the the 7805 IC Datasheet and specification links that you need! Enjoy the Data Sheet!
Encapsulated in a single chip/package (IC), the 7805 is a positive voltage DC regulator that has only 3 terminals. They are: Input voltage, Ground, Output Voltage.


Although the 7805 were primarily designed for a fixed-voltage output (5V), it is indeed possible to use external components in order to obtain DC output voltages of: 5V, 6V, 8V, 9V, 10V, 12V, 15V, 18V, 20V, 24V. Note that the input voltage must, of course, be greater that the required output voltage, so that it can be regulated downwards.




General Features:


Output Current up to 1A
Output Voltages of 5, 6, 8, 9, 10, 12, 15, 18, 24V
Thermal Overload Protection
Short Circuit Protection
Output Transistor Safe Operating Area Protection


Full 7805 Datasheet Links:
7805 Datasheet for Fairchild Semiconductors
7805 Datasheet for KEC (Korea Electronics Company)
Source: electrokits.com/Datasheets/7805-Datasheet


78L05 / 7805 based +5V regulator circuit with explanation

This is a very simple article, just trying to help ….

What is the most vital piece we always need in electronics? The answer is …. a good power supply, right?

The best regulators for using in electronic projects are the 78LXX (78L05, 78L09, 78L12, 78L15 … ). I searched google for the application notes and I found them easily (look in the bottom part of the page for the download link).

Their typical application was the IC + 2 small condensers (the input is at 0.33uF and the output is at 0.01uF), but after some tryouts and more googling I found this page which, too be honest with you, I consider it to be the best circuit over the web.

I tested the circuit and it worked like charmed.

Reading the application note we see that the input voltage must be between 7V and 20V and the output voltage is between 4.75V – 5.25V





Components:



IC1 = 78L05 / 7805

D1 = 1N4007

C1 = 100uF

C2 = 10uF









Bibliography :

http://www.pmb.co.nz/psu_general_1.htm

http://www.national.com – The official manufacturer page

The 78L05 Datasheet : http://www.national.com/ds/LM/LM78L05.pdf

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