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LM27762: LM27762输出负电压不对,PCB也是这样的情况,和仿真一样。

Part Number: LM27762

无论怎么调C1(fly)电容和Rcp都不能输出正确的负电压,检查了电路是按照手册上来执行的呢。修改En-,EN+的输入组合方式也不得行,求助大神~

实际
PCB也是这样的情况,和仿真一样。