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TPS7A39: 输出正负12V电压时,负电压正常,正电压只有1.2V

Part Number: TPS7A39

我使用TPS7A39提供线性电源正负12V,电路图如下:输入电压分别为正负15V,但是输出负电压是-12V,输出正电压只有1.2V左右,麻烦帮忙看看哪个地方的电路有问题,谢谢!

另外,输出分压电阻分别增大到原先的10倍,问题仍然存在。

电路中没有焊接C703,保留了C704.