请问我用LP5907将5v转换为1.2v不接负载时正常1.2v,接入5v,输出就变为2.5v,这个负载就是一个芯片的引脚,这是为什么?
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HI
不用LP5907供电,改用外部电源供应器看看? 从你描述看负载芯片的供电可能会受其他电压影响。