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LMA3150驱动NMOS管的能力问题

Other Parts Discussed in Thread: LM3150, CSD18502KCS

同步降压buck电路设计,IC为TI的LM3150,上下臂NMOS  为AOTF240L,输出12V,10A,为了增强散热,3NMOS并联使用,现发现上臂mos还是很烫,,,查mos管  ,经计算得最少驱动电流32.4mA,。。。。。。

    想问下,怎么才能解决MOS管发烫厉害这个问题。