Other Parts Discussed in Thread: TPS5430
LMR33630能否可以输出-5V电压?是否有参考设计?
如果该器件不能输出,有其他替代型号吗(12V输入,-5V输出,输出电流2A)?
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HI
可以的,降压芯片都可以设计成负压输出,可参考文档:https://www.ti.com.cn/cn/lit/an/slva257a/slva257a.pdf
或者你用参考文档中的芯片TPS5430也是可以的。
HI
按照TPS5430的方式来设计即可, 只是没有出文档,方法都一样,原输出接GND, GND就变成负输出。