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UCC256402: 在负载极轻载和大动态时输出存在异常

Part Number: UCC256402

1. 极轻载时,输出纹波会有较大高频尖波,放大可以看到明显跌落;如图2/图3;

2. 5%-95%大动态负载时,输出电压偶尔出现较大跌落,从初级驱动来看,问题在于负载切换刚好落在burst模式的间歇时间内,请问是否有解决办法?