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基于SB628的可调升压电路
VIN:2V ~ 24V Vomax = 28V Fsw:1.2MHz固定开关频率 原理图基本按照数据手册上画的,得益于1.2Mhz的开关频率,输出纹波很小,这款芯片的特点是体积小,外围电路简单,有不小的输出电流 当然这款芯片也可以做成数控的升压电路,不过要构建闭环环路,最简单的是 ...
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