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我仿照数据手册做的电路，设计输入为16v输出为5v，空载时或电流小时输出5v稳定，但电流升到1A多时就掉电压.感觉应该是过流保护了请问过流保护是修改什么参数啊
把你的原理图和PCBlayout发出来看看
PCB只会画一面的。。。
SW点的波形什么样子？应该不是限流而是电感选择有问题。
