This is the place to ask questions related to the DC-DC converter board by Murata (490-5791-1-ND). This device is a non-isolated PoL module with an inductor-embedded ferrite substrate that helps to reduce EMI noise. This device maintains a 1.8v output over the full range of output currents. It has a maximum output of 600mA.
For the video we used a DC load to simulate different kinds of loads the device could potentially see and there is an EEWiki post that details the findings along with a video illustrating how this was tested.