用干电池供电。想要从从3V升压并且稳压到9V。求一个芯片。并且加上负载以后。输出20MA以内电压不会下降。
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Hi
可以借助: http://www.ti.com.cn/tihome/cn/docs/homepage.tsp Webench软件选型,输入相关参数如输入电压/输出电压等,即可找到相关合适的芯片,并且得到电路图,以及效率等等,这个工具很好用。