Hi there,
I purchased 4x U3V12F12 voltage converters with the intention of boosting input from at ~ 3.7v LiOn battery to 12V for use with an Arduino Nano.
I’ve noticed that the Vout of the U3V12F12 and the Vin are identical; that is the Vout of the converter is showing as 4.0v. This is pretty much equivalent to an internal short within in the converter.
Is the converter shot?