Synchronous buck converter for 12V/5A output

What is the logical next step after making a linear regulator ? I learned some valuable lessons (both regarding general electronics and power supplies) doing that project, so I believe I could now make a much better linear supply. And perhaps I will! But now I decided it was time to aim for a switch-mode power supply (SMPS), a.k.a DC/DC converter. This article documents my take on a synchronous…