按照数据手册上的应用电路画了PCB,参考了数据手册中的推荐布局,使用直流稳压电源作输入电源+5V,按下OUTPUT后,直流稳压电源输出电压自动从+5V变为1.9V,LM2611发热严重,测输出只有-0.03V,这个是什么情况?


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Hi
测试一下SW阻抗是否正常? (对比没有用过的芯片,或者正常的板子)