Help needed? step-up Boost

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http://forum.allaboutcircuits.com – HI I Need a step-up boost to get a 3V to 12V out on the output. The in put needs to be 3V to 9V or 12V on the input. Current 1-6amps. Surface mount module prefer. I found this on Ebay would this serve for my requirements. http://www.ebay.com/itm/DC-DC-Adjust...item48582e3cac (Embedded)