In my design I need 2 supply rails +12V & -12V from a +5V. I will be using these supplies to power transceivers that are rated a max current drawn of 120mA\130mA. In order to give enough spare in the power ratings of the required solution I thought of looking for DC\DC that would provide 0.5A max (maybe this is over kill ???). We are concerned about the heat and limited space requirements of our design. I found the LT8335 (Typical application : 5V to 12V Input, –12V Inverting Converter) and the LT3580(Typical application : 2MHz Inverting Converter Generates –12V from a 5V to 12V Input) and now comparing them as well as potential options of other suppliers solution.
Is there someone who could possibly give me some advice on these potential solutions ?