[TriEmbed] Powering ESP32 from an 8v golf cart battery

[Scott Hall]

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
> <triembed at triembed.org <mailto:triembed at triembed.org>> 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
ScottGHall1 at GMail.Com

/Although kindness is rarely a job, no matter what you do it's always an option./

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