So, I have this circuit which needs <50mA and can be supplied with a voltage between 2V and 3.3V.
I want to supply it with a Li-Ion cell, which has 2.7-4.2V. I don't really want/need the complexity of a buck/boost converter. I know I could just regulate it down to anything below 2.5V, but it still would be great if my circuit would get 3.3V for Input-Voltages above 3.3V and the input voltage for anything <=3.3V.
So basically I want a voltage regulator that only regulates for voltages >3.3V and which doesn't (and ideally doesn't use any power) for voltages below.
What is this thing/circuit called?