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TPS562200输出突加负载,电压被拉低

Other Parts Discussed in Thread: TPS562200, TPSM84824

Hi support!

我们一个项目中使用了TPS562200,输入为9V,输出为5V,如下为问题现象:负载电流为100mA,输出为5V,突然增加负载1.2A,5V被拉低,然后又重新输出5V。请问这个是什么原因,是不是与TPS562200的负载调整率有关系?如何改善这一现象?谢谢!

如下为用示波器测得的波形和原理图。