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TPS54560: 两片TPS54560DDAR 设计一个24V转±15V 电源,带负载启动时出现启动异常

Part Number: TPS54560


原理图如下:

负载是一个振镜电机,±15V的供电,启动电流超过2A,峰值可能达到3A以上。

带载上电启动时,有概率出现TPS54560 芯片反复启动形成啸叫声音。

请问这个问题如何分析,有什么建议?