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Analog Devices Switching Regulators: How to decide whether an electrolytic capacitor is required as an input capacitor, apart from a ceramic capacitor?
Basically, there is no problem with only ceramic capacitors. However, depending on the application and usage, it may be necessary to add an electrolytic capacitor or the like. For example, if there is a long wire in the input section, it is recommended to add an electrolytic capacitor because problems such as those described in this column may occur.
(Published in March 2023)
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