A very simple circuit to create a 3.3V supply from the +5V USB port.
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LICENSE
README.md
USB3V3_pcb.png
USB3V3_sch.png
USB_3V3.brd
USB_3V3.sch

README.md

USB_3V3_Adaptor

A very simple circuit to create a 3.3V supply from the +5V USB port.

I created this to derive 3.3V from a regular 5V USB port/cable, this was solely to power some development boards that are 3.3V only and it negated the need to have another power supply. A 3 pin linear regulator and heatsink are used.

No provision for short circuit/overcurrent has been made.