+5V转-12V,输出电流300ma左右,有常用的IC推荐吗?+5V转+12V用了TPS61085。
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HI
可以再用一降压芯片做反向输出,例如TPS5410:
http://www.ti.com.cn/cn/lit/an/slva257a/slva257a.pdf
TPS5410是TPS5430的1A输出版本,负电压输出设计原理和算法是一样的。