The typical question for a datahold application is the how much capacitance do the application require, when
the application need x ampere current for y seconds and the buck or buck-boost converter operates in V_min, V_max range.
In addition a certain resistance in series exist, this could be either the protection diode and/or the internal resistane of the supercap.
In case of the current consumption is too big for the supercap, the calculated capacitance is negativ.
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