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LM25145: LM25145设计使用空载时,输入静态电流过高,MOS发热

Part Number: LM25145

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VBAT是27V,设计输出23V,上电空载情况下Ivin=0.5A,发现MOS发热

下图是抓取MOS管栅极波形

093d6e48d50f75510bc6fa298f711576.jpg

 

调整栅极驱动电阻大小发现不能改变驱动波形,这种情况该怎么做