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lmr16010&lmr16020&lmr16030的内阻、热阻相同,那在散热上是如何做到不同输出电流等级的呢?

Other Parts Discussed in Thread: TPS54327, TPS54527

问题同标题,我看规格书上的描述都是155 mΩ High-Side MOSFET,其他同类芯片,比如TPS54327和TPS54527,电流不同其内阻也有很大差异,这样可以有效降低损耗。LMR16这个系列是如何做到相同内阻,输出电流可以达到1-3A的区别?换句话说,如果负载电流恒定的情况下,比如1.5A,那选择3A和2A的芯片,在热损耗上,是不是一样的?