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https://e2e.ti.com/support/dlp-products-group/dlp/f/dlp-products-forum/940939/dlpa100-not-use-output-channel-connect-12v-and-vreg-why-is-it
对于黄色器件、为什么它连接、而不 是无连接
5V 和3.3V 降压稳压器输出未使用。 V5和 V3P3引脚是基准电压为0.8V 的反馈引脚。 将它们连接到1.2V 可通过将反馈设置为高于基准电压来有效禁用降压稳压器。 LX 引脚是开关输出、需要连接以正确偏置降压电路。
