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TPS54260DGQR +24V转±15V,负压要么无输出,要么电流非常大直接把直流电源24V/1A拉低到2V。烧掉TPS54260DGQR



01--出现过一种情况:调好了-15V和+15V,单独工作没有问题,一起工作就电流大,烧正压或者负压。

02--还出现过,负压无输出,或者上电就电流非常大,烧掉电源芯片。