What's the maximum amount of current which I can draw from the 3,3V line on RiotBoard

10 Mar 2016

Hi, I know that the RiotBoard provides 3,3V on the pin header and also should provide 3,3V over the LVDS connector. What is the maximal current availible ? I would like to connect older LCD fomr a laptop and would like to know if I need extra power supply for feeding the electronics. The 3,3V current will be limited by the power regulator but I do not know which one is used by the riotboard.

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clem57 over 10 years ago

I know this is not the Riotboard, but this should be a ball park area:

http://www.element14.com/community/message/58840#58828
50 mA is for the 3.3V power pin (P1-01) which is the output of RasPi's 3.3V regulator RG2. You can use it for +3.3V ICs and pull-ups on an external board provided that the total current is under 50 mAI
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clem57 over 10 years ago

I know this is not the Riotboard, but this should be a ball park area:

http://www.element14.com/community/message/58840#58828
50 mA is for the 3.3V power pin (P1-01) which is the output of RasPi's 3.3V regulator RG2. You can use it for +3.3V ICs and pull-ups on an external board provided that the total current is under 50 mAI
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clem57 over 10 years ago in reply to clem57

Required 5V/4A but 1A min needed. See this
Review | RIoTBoard - Revolutionizing the Internet of Things
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