请问一下,TPS54332的压差是多少,我输入一个5v的电压,输出可以得到4.2v吗???
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楼主,TPS54332是可以满足你的要求的。TPS54332的BOOT电容两端,只要电压高于2.1V,那么是可以实现上管一直开通的,那么输入和输出的压差就只由输出电流和高侧MOS的rdson,电感等效阻抗,线路阻抗这些寄生参数决定。