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DLPA3005: LED开启后电感啸叫

Part Number: DLPA3005

LED开启后,1.5uH电感啸叫,电路部分参考demo设计,没有更改。输入电压Vin=19V,LED电流设为10A。

更改电感值(目前调试只增大了电感),减小/增大容值,均没有明显改善,请帮忙分析一下,谢谢!