Vin=20V 输出电压5V，输出电流5A，工作频率70K，应用在断流模式下，负载3A以下输出没问题，但是负载超过3A的时候输出电压就降低了，请问大神们有没有遇到过此类问题啊？我使用pspice A/D仿真完全没有问题。
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