I recently purchased two L293D H-bridge Motor Controller from Adafruit (data sheet here), but after reading that the controller could only output a max of 600mA for a short time, I realized I had a problem. Due to the constraints of the Arduino that would be driving it, I can only get 600mA anyways, so I figured that I would need to use a DC-to-DC Step Up Converter to boost the voltage (therefore current) to run motors. However, I was worried that increasing the voltage after passing through the IC might damage it, and although I doubt it, better safe than sorry. Being two bucks a pop, would increasing the voltage after leaving the H-bridge, i.e., between the IC and the motors, damage the IC?
Forgive me if this is bad question, but I'm relatively new to electronics. :)