Powering the IFC6410 from a 12V Battery

The IFC6410 DragonBoard can draw quite high peak currents, up to 3 Amperes at
5 Volts. The Battery on the Robot provides ~12V. We need to step the robot
battery voltage down to 5V. The 'simplest' solution is to use an off-the shelf
DC-DC Converter. Here is an example of one that will work:
http://www.digikey.com/product-detail/en/PYB15-Q24-S5-T/102-3185-ND/4477443
This solution is a little expensive, but will be rugged and reliable. I used
the same supply (with a slightly different form factor) when building my last
Robot. See item 107 in the article here:
http://mydragonboard.org/2014/building-a-robot-with-dragonboard-onboard-part-1-introduction-and-bom/

This looks like it would also work.
http://www.amazon.ca/Converter-Step-Down-Power-Supply/dp/B00CBSBHO2/ref=sr_1_1?ie=UTF8&qid=1421267681&sr=8-1&keywords=dc-dc+converter+5V+3A

The one on Amazon seems to be good enough, and is dirt cheap. I'll talk to Mr. MacKinnon about it when I am at my build shift tomorrow.