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TPS65251输入端Vin是否需要电解电容

Other Parts Discussed in Thread: TPS65251

专家您好,我在用TPS65251做设计,手册上说Vin1只需接10uF的瓷片电容,但我们老师说还要接电解电容。我不明白到底需不需要接电解电容。如果需要,原因是什么,如何选择大小。如果不需要,为什么.?