Have a brain-melter
Added 2025-05-06 18:16:16 +0000 UTCHaving seen these little three pin power supply control chips in various products, I decided to take a look at some datasheets and see if I could work out the magic.
Comments
Higher pin numbers allow more options, but three is all that is required.
Big Clive
2025-05-08 18:58:18 +0000 UTCBecause the bottom rail is at -0.6V.
Big Clive
2025-05-08 18:57:24 +0000 UTCConfusing little device. If the top rail is at 5V-0.6V, how is that greater than 4.7V?
Jon Knight
2025-05-08 11:26:54 +0000 UTCWhat’s the advantage over the typical 5 or 6 pin arrangement? It’s certainly very clever and I guess it saves a few pennies on packaging but the overall part count isn’t any less than usual so is it actually cheaper?
Jeff Brown
2025-05-08 07:44:25 +0000 UTC
