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Electrical Characteristics (LM). (Refer to the test circuits. 40qC TJ qC, IO = mA, VI = 19V, CI = PF, CO = PF, unless otherwise specified). LCV LM L Voltage Regulator IC + 12V A. 78xx (sometimes L78xx, LM78xx, MC78xx) is a family of self-contained fixed linear voltage regulator integrated circuits. The 78xx family is commonly used in.

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7812 Voltage Regulator Fixed Positive 12V Linear IC L7812CV

Unsourced material may be challenged and removed. January Learn how and when to remove this template message. The LM78S40 from Fairchild is not part of lm78122 78xx family and does not use the same design. Encyclopedia of Electronic Components Volume 1: The SR from Datel is a full switching power supply module designed as a drop-in replacement for 78xx chipsand not a linear regulator like the 78xx ICs.

The R3 can be placed in your project box and can be replaced with a potentiometer of similar price. In other projects Wikimedia Commons. The is the most common, as its regulated 5-volt supply provides a convenient power source for most TTL components.


The 78xx line are positive voltage regulators: I designed this variable power supply which is based on the famous series of voltage regulator LM78xx. You will get better heat conduction if you use thermal paste between the heatsink and LM78xx before screwed together. Thanks for your comments. For the years, see 8th millennium.

If you can do better, create your own site! The second uc is for the transformer, the board contains the base for the primary fuse and one on-off switch for V mains voltage.

Regulator | eBay

Industrial Electronics and Control. Cool Projects for Open Source Hardware. Some devices provide slightly different voltages than usual, such as the LM78L62 6. Retrieved from ” https: This has given me a start and is better then many others I have seen.

7812 Regulator

Now be honest Spili! On this iv I use the LM in TO footprint, which can be screwed to the rear of a heatsink for better heat dissipation. LM78xx can be easily found in stores with electronic materials. Learn how your comment data is processed.


Leave a Reply Cancel reply. These devices support an input voltage anywhere from around 2. You may choose the appropriate bridge rectifier according to your requirements.

LCV LM L Voltage Regulator IC + 12V A

The 78xx family is commonly used in electronic circuits requiring a regulated power supply due to their ease-of-use and low cost. By using this site, you agree to the Terms of Use and Privacy Policy. Everobody on the internet has copied it from somewhere. The electrical characteristics can be lm7182 here.

Views Read Edit View history. Admin, thank you for this. It is a component in switching regulator designs and is not a linear regulator like ,m7812 78xx devices. The variable resistor R3 varies the output voltage Vout.