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TPS6508641电源输出异常

您好,做了TPS6508641的电源板,5VLDO与3.3V LDO输出正常,有一个板子BUCK1输出5V,BUCK2输出8V,电感啸叫厉害,其他无输出,另外一个板子只有5VLDO与3.3V LDO有输出,其他无输出,请问一下,这个可能是什么原因导致的问题?下面是原理图。