This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
1. 输出没有短路，板子输入电压是5.4V，调成5V也尝试过，但是仍旧没有输出，第一次用这片子。
2. SW没有波形，像芯片根本就没工作起来，EN脚有拉高啊。机贴的板子。
3.mode脚是拉低模式；
负载不短路；也可能搭锡等。建议用示波器看下SW脚波形。
