I need to power a 5V device consuming up to 2A of current on a motorcycle (12V battery). I tried using a simple 7805 regulator, but the heat generated is just too much for the confined space under the seat - the plastic has started to melt.
So I figure I need some more efficient way of getting the 5V - enter DC/DC switched converters... Unfortunately my knowledge in electronics is limited to very basics, so I need some already worked-out solution with as little 'special' parts as possible - I mean the coils and transformers - these are always a pain to get or make...
So, to sum it up:
Input: 12V (13.8V)
Output: 5V / 2A (and as little heat as possible)
If you just want to solve the problem then you should be able to buy a module that meets your needs. It might be expensive however.
If you want to build one then I suggest you download a copy of LTSpice/Switcher CAD III. Enter your requirements, and voila a schematic appears that you can use to simulate the circuit. After you succeed with your first DC/DC converter you will gain the confidence to use other chips.