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使用TPS65133输出±5电压时，为后端电路供电，+5输出正常，-5输出为0.7V，请问是什么问题？如果跟后端电路断开，测试TPS65133后级输出电压为±5，并且连接电阻负载时，输出也正常，请问这个问题该如何解决？谢谢。
