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TPS54260芯片

Other Parts Discussed in Thread: TPS54260, TPS54260-Q1

我的的电路输入电压范围是10到60V,5V输出,最大输出电流2.5A,开关频率是243Khz,电感是12乘12电感。电路图如下

我现在的问题是:当输入电压为58V,输出5V,500mA的时候,我的电感很烫。我现在该如何解决呢