Use this voltage booster to get 5V from 3V, 3.3V, or 4.5V source. This circuit uses a MCP1603 switching booster to get 5V output. Depending on input voltage, you can get up to 80 to 100ma. At 100ma, this thing is barely warm. This compact board has two M3 screw mounting holes and you can solder wires or headers to it.
If you are interested in a 3.3V output version, please contact me.
Note: The back of the pcb says min 0.8V input. This is a theoretical minimum from the datasheet, not the actual minimum for 5.0V output.
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