LM5116芯片,想设置为1MHZ的频率,电阻用2K左右,频率还是在480KhZ左右。
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你测试时的负载是多少,如果是轻载,可能就会出现降频现象
At very light loads with larger values of output inductance and MOSFET capacitance, the switch voltage may fall slowly.