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LM22676-ADJ 输入端接4.7fuf电容可以吗?

LM22676-ADJ 输入端接4.7fuf电容可以吗,输出端接的20uf电容;输入电压5-18v,输出电压3.3v,输出负载电流1A。这样接试了下是正常的,就不知道长期使用会不会有问题,因为输入端电容小了点。