98. A 78XX Voltage Regulator Replacement

This a great substitute for the 78XX series of linear regulators. This one is from Recom but you can get equivalents from Traco, Dimension Engineering and others. You also get non-packaged versions. Just a quick comparison in efficiency, some specifications and some testing.
Linear Regulators
• 23. Three Terminal Lin...
Buck Converters
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[@astorina]

Very good and precise comparison , I have learned a lot from you in such a short video

[@TheOffsetVolt]

Thanks for the feedback and thank you for watching.

[@t1d100]

Good video. Thank you for your effort to share your knowledge. An often overlooked specification of the LM78xx series of linear voltage regulators... While 2 volts of headroom is the typical voltage needed to prevent dropout, =>3 volts is necessary for the device to achieve its best ripple rejection factor. The trade off is obvious, better rejection verses more heat.

[@pr45t_dm]

thanks for sharing your knowledge, I can learn a lot, and it's mean a lot

[@navadeep.ganesh]

Very informative! Thanks.

[@TheOffsetVolt]

Glad you enjoyed it!

[@davidluther3955]

EXCELLENT PRESENTATION.

[@DaveMcAnulty]

Temperature and Ripple would have been neat to have on the chart. I wonder how older electronics and 8bit computers would handle the ripple, or if adding some output caps could clean it up enough not to matter.

[@braveheart9275]

Thanks. Nice job.

[@TheOffsetVolt]

Thanks for watching!

[@andymouse]

This is a great tutorial thanks ! I think the 7805 is safe for now as the Recom device is handy and has some definite advantages but will remain quite niche as the price is £5.61 which i guess is about $7 ?.....I had forgot about them and are worth considering, once again cheers !

[@TheOffsetVolt]

You are quite right about the price, you could get dozens of the 78XX for the cost of one 78E. The price in the US is about $3.50 for the 5V variety. I'm surprised they cost more in the UK, Recom is a German company if I am not mistaken. Thanks for watching.

[@m1geo]

Digikey has them for less than £3 with VAT (945-2201-ND). They're no more expensive than the 7805 when bought new.