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
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HI
从layout看芯片散热没有问题,确认一下功率电感饱和电流是否足够大?(轻载下芯片温升是否也严重偏高?)