Short circuit protection for a boost converter
Here's a linear tech app note
http://cds.linear.com/docs/Design%20Note/dn154f.pdf

If you're not using much current, sometimes a simple solution is to just use a thermal fuse in front of the converter, or even a simple lm317 type current limiter.  The second will give you a voltage drop, which may or may not be a problem.  Another easy solution is a good current limited voltage regulator in front of the boost converter and dedicated only to the boost converter, so if there is a short it doesn't bring the rest of your rail down.