R-78S switching regulator boosts a AA battery to 3.3V
https://www.electronics-lab.com/r-78s-switching-regulator-boosts-aa-battery-3-3v/
Recom’s first evaluation board allows engineers to effortlessly test the functionality of the R-78S switching regulator, which boosts a AA battery or external supply voltage to 3.3V for low power IoT applications. By Julien Happich @ eenewseurope.com: The R-78S Evaluation Board demonstrates the performance of the R-78S which boosts single-cell AA battery voltage of 1.5V […]