| Electronics > Beginners |
| Replacing a fixed and a adjustable regulator |
| (1/1) |
| gkmaia:
I looking for some help replacing a couple regulators. IC 101 and 107 on the schematic attached. First one is a s-81250hg and the closest I found was: https://www.ablic.com/en/doc/datasheet/voltage_regulator/S812C_E.pdf Second one is a TK11640. I am struggling with this one because it is not fixed. It goes in increments of 0.5 from 2v up to 5v. S-81250HG is here: https://www.digchip.com/datasheets/parts/datasheet/432/S-81250HG-pdf.php TK11640 is here: https://www.datasheetarchive.com/pdf/download.php?id=6b04dbd83b9c95ca8b5539f6738b79f62a036b&type=O&term=TK1164 |
| mvs:
--- Quote from: gkmaia on January 06, 2019, 02:41:32 am ---Second one is a TK11640. I am struggling with this one because it is not fixed. It goes in increments of 0.5 from 2v up to 5v. --- End quote --- They all are fixed. TK11640 is 4.0V, TK11630 (IC107) is 3.0V, S-81250HG (IC101) is 5.0V... |
| Zero999:
The TK11640 is fixed and is made to the required voltage by the manufacturer. No doubt all of those regulators could be replaced with fixed/adjustable low dropout regulators with a suitable current rating. |
| gkmaia:
Thanks guys, those are the ones I found that are the closest ones with matching pins. Sorry for such basic question. I am a beginner and don't want to get it wrong. 3v - Tk11630 https://www.digikey.co.nz/short/p73f72 5v - s-81250hg https://www.digikey.co.nz/product-detail/en/ablic-u-s-a-inc/S-812C50AY-B2-U/728-1066-ND/3609196 |
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