Max, The LT1308B has a .01 uA typical, 1 uA maximum standby current when shut down, according to the data sheet, shown on page 2 as Iq (the third line with Vshdn = 0V).
I don't think you have a problem here. On 6/6/21, Max DN <[email protected]> wrote: > Hello, > > I'm working on a solar powered nixie watch (similar to the Kopriso Nixie > watch). > > It's crucial that I dramatically reduce stand-by power as much as possible > and within 2.5uA, which is where the solar panels will balance off the > stand-by current. > > Regardless of which power supply I use, even using the shutdown pin, the > power supply still takes 2.5uA. This is perfectly in line with the > electrical specifications of the datasheets. > > So, my question is, can I 'brute force' a shutdown, effectively removing > the power from the VIN pin via a PNP high speed mosfet such as MMBTA42 or > it will introduce too much of a delay in starting the power supply? > > I'm going to try it on the fly but if anyone has any suggestions on how to > bring to 0 or to 0.01uA the stand-by current that would be great. > > As an example, I'm using the LT1308B DC/DC converter as on page 17 of the > datasheet > https://www.analog.com/media/en/technical-documentation/data-sheets/1308abfb.pdf > > Any suggestions will be much appreciated. > > Thank you, > Max > > -- > You received this message because you are subscribed to the Google Groups > "neonixie-l" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/d45edcd8-0176-4205-95f1-b04eb34a32f1n%40googlegroups.com. > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/CAPbqtvfrOAxH0qkK%2BAQg8hf1KRz%2BVgek98k38BUTM8PS5s%2Bwbw%40mail.gmail.com.
