The spec you are looking on a datasheet for a linear regulator is the "Dropout Voltage". Dropout voltage + regulated voltage is your minimum input voltage.
On 11/15/20 10:34 PM, The MacDougals via TriEmbed wrote: > > Thanks for the responses. Keep them coming. > > My question is more on “how do I tell from a datasheet what the Vin min spec > is.” > > DC/DC buck converters typically advertise a reasonable range of input > voltages. > > My reading of the datasheets does not. > > > > ---> Paul > > > > > > On Sun, Nov 15, 2020 at 7:38 PM The MacDougals via TriEmbed > <[email protected] <mailto:[email protected]>> wrote: > > How do I find an LDO that operates on 8 – 8.8 v? > > I looked at a couple of datasheets and found linear regulators that take > 9v (max) input. > > I did not see a (min) spec for input v. > > > > How can I tell if it works at 8? > > > > For example: > > https://www.njr.com/electronic_device/PDF/NJM2888_E.pdf > > > > > > ---> Paul > > -- Scott G. Hall Raleigh, NC, USA [email protected] /Although kindness is rarely a job, no matter what you do it's always an option./
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