Exactly as your existing 5v generator, but makes 3.3v.
At the moment I have a battery pack feeding your 5v dcdc and then an old LDO Linear 3.3v reg wasting power down to 3.3v for the circuit.
Not sure what your requirements are, but [this might work.](3.3V switching voltage regulator - 7803 replacements)
I’m not sure exactly what you’re asking for, but if you are referring to their [1.5v to 5v converter, the manufacturer also makes a 3.3v version. Perhaps SparkFun can carry those as well.](http://www.sparkfun.com/commerce/product_info.php?products_id=8248)
Yes, I noticed in the spec sheet that you can replace vf2 for a 182k instead of a 100k it makes 3.3v
Now, its an 0605 smt resistor. I can almost see it, and with about an hour re-solder it.
What I dont have is any 1823 or 184 (0605) smt resistors handy. I would also like to be able to buy it in the right format and not need to modify it.
Anybody want to post me a smt resistor? im sure the post is cheap for something that small 
Can sparkfun carry the 3.3v version too? please?