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LMR38020: 芯片工作温度高,如何调整

Part Number: LMR38020

Dears,

   54.6-36.4Vin 35Vout, 客户做出样机后,无负载测试,发现芯片温度持续升高至60多度,帮看如何调整,谢谢!

原理图

PCB