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调试LMR14020-Q1 输出8V1A没有问题,超过1A的负载电压就会被拉低



按照参考电路在面包板搭建的测试环境,测试50%负载输出8V1A时没问题,但是超过负载输出电压就会被拉低,输出电流也变低,这会是什么影响?输出纹波也高

VIN=24V CIN=10UF Cboot=0.1uF RT=30K Css=22nF L=47uH D=SSA24HE3_A/H Cout=68uF, RFBB 20K范围滑动变阻器,RFBT 500K范围滑动变阻器。