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https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1027539/tps745-q1-tps745-q1-pg-pull-up-to-input
你(们)好
TPS745-Q1的漏极开路选项的 PG 引脚能否拉至输入轨？
您好、Alexander、
是的、您可以这样做。 您将需要使用一个电阻器将 PG 引脚连接到 VIN、否则在 LDO 处于稳压状态之前、它将消耗少量功率。 您可以使用300mV/2mA = 150欧姆来估算下拉电阻。
谢谢、
斯蒂芬
