Can VCC be used to power something?

Hi,

I'm using the 5v Pro Micro from Sparkfun (https://www.sparkfun.com/products/11098?). Can I hook up power (say, 6v) to raw and use the vcc pin to power a 5v sensor (or some other 5v thing like an IC)?

Thanks

sciguy77:
Hi,

I'm using the 5v Pro Micro from Sparkfun (https://www.sparkfun.com/products/11098?). Can I hook up power (say, 6v) to raw and use the vcc pin to power a 5v sensor (or some other 5v thing like an IC)?

Thanks

Sure as long as the current draw from the 5V pin is not too excessive.

Lefty

Where can I find the max current draw?

Well the schematic linked from the SparkFun page has the regulator labelled as 500mA. But of course regulators will
shutdown on over-temperature too. From 6V that’s unlikely to be an issue but drop-out voltage might be - however
the device used, MIC5219-5V, has 0.5V drop out at full current so should work nicely from 6V. If connected to USB
the USB can supply the 5V too.