you do analog, but do you have a specific "switch mode power supply " module?
Heres a "trick" question on op-amps then.......if you are using an MCP601 opamp as a buffer (follower), and it is supplied with 3v3, then what happens if the voltage on the noninv input goes above 2.1V? https://ww1.microchip.com/downloads/en/devicedoc/21314g.pdf
Any higher and it will violate the supply/input difference of 1.2V.
3.3-1.2 = 2.1 <- the boundary point.
This is Coventry UK. :| I am unsure if we have a whole module on smps, however that would probably be more in the electrical engineering domain. We tend to gravitate towards communications (I believe) in the third year.