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求两个TPS61030并联输出的设计建议

Other Parts Discussed in Thread: TPS63020, TPS61030

由于产品需要PCB面积会很小,两个芯片之间的距离无法超过1CM,请问会有以下问题么?

1.两个芯片靠的很近会互相影响么?如果影响的话多大的间距才是合适的?

2.两个芯片的底部接地散热盘能否接一起?

3.会影响欠压、电压比较、输出电压值功能么?

请给出设计建议谢谢