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LM5175输入电压30V 输出电压4.2V,电感有噪音

电路设计20~30V 输入

输出为4.2、8.4、24V这几个电压等级  3A

4.2V全输入电压范围有问题,8.4V 当输入电压升高问题会明显

参数参照TI设计

HDRV_1N 电压波形: