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Powering a USB device from 3.3V system

Question asked by David Pfaltzgraff on Nov 9, 2015
Latest reply on Dec 1, 2015 by David Pfaltzgraff

I have a design based on the Kinetis K22F processor and would like to add USB OTG to be able to support a USB thumb drive.

 

Is there a circuit that anyone would recommend that would generate the 5V needed for the USB port? All I have available on the board is 3.3V, (Unless I plug in the USB from a host and that defeats the idea of OTG!)

 

Thanks.

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