Recommended · for beginners
Buck converter vs. linear voltage regulator - practical comparison
Why people recommend it
Compares a buck converter and a linear regulator on the bench for efficiency and output noise; cited when choosing how to drop voltage in battery projects.
Watch for: linear wins at low current and for a clean output
In their words
For the record, here is a very good video about LM regulators vs. buck converters: Buck converter vs. linear voltage regulator - practical comparison
Dan Chaltiel on electronics.stackexchange.com, Jun 2019. CC BY-SA.
For a comparison for switch-mode against linear regulators look here.
Maximilian Gerhardt on arduino.stackexchange.com, Mar 2018. CC BY-SA.