输入5V转3.3V输出,要求输入与输出之间具有隔离的电源转换方案
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楼主性价比高一点的可以使用SN6501,如果对成本要求不高,简单易用的,可以使用DCR010503,直接就是一个电源隔离模块。不过这两种解决方案都是小电流的,总功率也就1W左右。