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TPS53318 BUCK电路电感有声音

电路设计:10V到22V输入,4V输出,负载电流从0.1A到5A,电感均有吱吱声,声音不大,但是该声音通过机器内部会传导到机器的麦克,导致录音时,不说话也会有噪音。