5v to 3.3v help barometer TBS powercube

I have a TBS Powercube that I'm trying to hook a BMP180 barometer to. The TBS is 5v out and the barometer is 3.3v in. Anyone have a link to a voltage regulater or have any ideas?
 
can you get a feed of the LED supply,,, that should give you 3.3v from the power cube..

– 3x status LED (DCDC pwr/ 3.3V pwr/ status)
 
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