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Original question:
求一个能输出-5V 1-2A的电源芯片
10-26VDC输入，-5V输出，2A，求推荐芯片，最好有对应开发板
HI
输入电压大于26+5即31V, 带载能力大于2/(1-5/15)即3A.
你可以选择TPS5430, 见官网： https://www.ti.com.cn/product/zh-cn/TPS5430?keyMatch=TPS5430&tisearch=search-everything&usecase=GPN
这里有反向电压输出的设计文档，也有负压输出的评估板，只是电压没有到-26V.
或者你也可以看一下TPS54360.
