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UCC28910的空载4.2V正常,带负载直接降到2.7V,请问哪里参数不对啊

Other Parts Discussed in Thread: UCC28910

上电测试了,空载时的DC端的电压是正确的是4.2V,带载时的电压只能是2.7V

附件是原理图,请TI FAE帮忙看下哪里参数设置不对吗?