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应用于24V降压到5V，之前批产好用，现在出现一批不正常板子。
由于以下波形导致，输出会有一个14V的尖峰电压。目前换过后端的二极管、MOS、电容、芯片，通过测量替换下来的件都没有损坏。
方便上传下你的原理图和Layout么, 黄色的应该不是boot端的波形吧
