推荐个TI的电源芯片,输入电压18~36V,MOS管外置。封装最好是SOP之类,便于焊接。
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Hi
用TPS40200这样8PIN脚的芯片也可以做,但是这个芯片驱动力有限,做6A输出你需要额外一个驱动芯片(或者双三极管机构).
Hi
其电流大使用同步芯片比较好,因为效率会比较高。