There is plenty of capacitance on the output of that regulator found in other locations on the schematic..
That will not fry a 3.3V SD card. Gerald On Fri, Oct 28, 2016 at 11:57 AM, Jonathan Herbst <amd...@gmail.com> wrote: > I am looking into some fried microsd cards that I've seen from BeagleBone > Blacks. I'm not sure what is causing the problem yet, but while reviewing > the BeagleBone Black schematic I noticed that the VDD_3V3B regulator looks > like it might have swapped input and output capacitors. According to the > manual for the regulator, http://www.ti.com/lit/ds/symlink/tl5209.pdf, > the minimum output capacitance should be 2.2uf, but the schematic shows a > .1uf capacitor for the output capacitor, C20. Just wondering if that was > on purpose. I don't think this is the cause of the fried sd cards I'm > seeing because there's plenty of capacitance at the microsd port, but it > looked odd to me. > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to beagleboard+unsubscr...@googlegroups.com. > To view this discussion on the web visit https://groups.google.com/d/ > msgid/beagleboard/42b5114c-3983-466c-b01b-2bbf9564e813%40googlegroups.com > <https://groups.google.com/d/msgid/beagleboard/42b5114c-3983-466c-b01b-2bbf9564e813%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- Gerald ger...@beagleboard.org http://beagleboard.org/ gcol...@emprodesign.com -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CAHK_S%2BfLU1CKvtuB4NcF4hjsteKkETiO0PqBkXOdsOSL5%2B9gDA%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
