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TPS650864: 技术咨询

Part Number: TPS650864

Hi ,

TPS6508641 BUCK1 电感L1发烫,电感值是2.2uH,限流电阻5.5K,输入12V输出5V,通过分压电阻调节输出电压5V,实际测试输出在5.2V左右,请帮忙分析一下发烫原因,谢谢

参考计算:

限流电阻计算: