Other Parts Discussed in Thread: LM5116
LM5116输出纹波很大,电感有声音,手放到芯片上用力按,就正常了,输出纹波小了,电感也不响了,这个是什么原因呢?
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Other Parts Discussed in Thread: LM5116
LM5116输出纹波很大,电感有声音,手放到芯片上用力按,就正常了,输出纹波小了,电感也不响了,这个是什么原因呢?
首先检查是否存在虚焊,其次看看电路参数是否合理(可以用WEBENCH仿真),最后看看PCB是否设计的正确(参考数据手册)