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TPS61023: 低压2.2V左右会有SEM问题

Part Number: TPS61023

低压2.1V供电时  我们测试B256的SEM性能,发现有1M处有明显突刺,经过排查是Boost开关频率传导到我们的PA器件,把这个杂散信号放大了,请问有什么解决或者优化的办法吗?1M左右的开关频率.