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采用LM5071非隔离电源，如下图手册提供5V方案，调整R12使输出达到12V，但当负载电流达到0.3A，输出电压拉低至5V左右，IC发烫，求解，谢谢~
这个图中有一个错误：R18的电阻值应该是1.24Kohm，而不是1.24ohm。
如果调整R12到11.8Kohm或者12Kohm应该能输出12V。
