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LM25116: 输出电压不正常,FB电压不正常

Part Number: LM25116


设计输入24V 输出12V/13A

电路参数参考TI POWER DESIGNER

空载输出不正常,带2A负载输出不正常且被拉低 

UVLO设计上悬空,接上分压电阻也异常

电路: