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When an output current that is actually to be used is about half the output current value of a data sheet application circuit or the like, would it be better to modify the L value of the inductor for actual use?
It would be better to use the inductance value of the data sheet application circuit and values within the range of recommended inductance values. For example, if the actually used current were 1/100, the inductance would be dramatically increased to an unrealistic value. Considering these matters, although it is not the case that large values can never be substituted for smaller ones, waste and excess tend to appear, and so a power supply with an output current near the current to actually be used should be selected.