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TPS54331: 输出电容的选择与穿越频率

Part Number: TPS54331

在TPS54331的Datasheet中看到了如下描述,the closed-loop crossover frequency should be higher than the corner frequency determined by the load impedance and the output capacitor

要求穿越频率高于负载与输出电容构成的转折频率

我很好奇为什么会有这种要求,PCM Buck的输出电感与输出电容的ESR会影响环路增益的零极点,并影响环路响应的稳定性

但是我不知道负载与输出电容与穿越频率之间有什么联系,请指教,谢谢~