For some types of IC, the switching frequency can be selected; what is the purpose?|FAQ|ROHM Semiconductor

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For some types of IC, the switching frequency can be selected; what is the purpose?
- In order to expand the freedom of design. If the switching frequency is raised, smaller external inductors can be used, so that board space can be saved. However, efficiency is lower, so that heat generation is increased, and there is the possibility of increased high-frequency noise. The frequency must be determined considering trade-offs between conditions of use and requirements.