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poe TPS23750

Other Parts Discussed in Thread: TPS23750

用TPS23750做了一个非隔离的PD受电方,3.3输出,可调电阻用DEOM建议的阻值1.78K,现在测试输出只有一个0.9V左右的波动波纹;吧可调电阻换成3.6K,输出波纹变成了0.2V左右,不知道什么原因