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TPS62160受GPRS天线影响使能后无输出

Other Parts Discussed in Thread: TPS62160

使用TPS62160芯片驱动LED,当GPRS注册网络时,或者通过GPRS发送数据时,开启TPS62160使能引脚无输出,初步判定为GPRS天线辐射导致芯片无法启动,增加屏蔽罩,将TPS62160及周围电路覆盖起来,依然没效果。

请问还有什么解决方法吗?

原理图电路如下: