This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPS561201: 轻载输出电压升高

Part Number: TPS561201

原理图如上,在轻载约60mA下,输出电压会在启动一段时间后从2.2V左右变为3.6V并稳定,VFB基准电压也从0.76V左右上升到0.8V,此时SW无方波波形。有尝试修改输出电感、电容,均无明显效果。增加负载至70mA左右输出回复正常。

是否轻载导致输出电压异常?