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https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1498312/tps7a20-polarity-mark-on-tps7a2018pyckr
工具/软件：
您能否确认 Micro BGA TPS7A2018PYCKR 顶部印有哪一个极性标记？
我看到标记"D"、点和 X 字母、我想确认哪个是极性标记。
提前感谢
嗨、
标记是点、指引脚 A1 (IN)。
希望这对您有所帮助、
Vahnroy Hosear
