I am building a project that is powered by a 12VDC 1A wall adaptor. Within it is an digital voice recorder IC that will only run on 3VDC or less. It only consumes a few mA though.
What is the simplest and most efficient method for providing this lower voltage?
I had been using an LM7805, with two iN4007's added in series with its
5V output. The regulator is heatsinked but still gets predictably hot. I know this is not best practice.Any suggestions would be appreciated. Prefer low cost, basic parts.
Thank you,
Kevin Foster