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TPS75003的1.2V输出 飙升



当空载时,测试3.3V,2.5V,1.2V输出均正常,

当连接FPGA后,1.2V会上升到2V以上,3.3,2.5均正常

当断开3.3,2.5,1.2V不断开,则1.2V也正常

不知道这是什么情况