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TPS75003的1.2V输出有问题

Other Parts Discussed in Thread: TPS75003

你好,我使用TPS75003电源芯片供电FPGA,电路板上按照推荐电路连接,三路输出1.2V,2.5V,3.3V,其中2.5V和3.3V输出正常,但是1.2V输出为0,并且电源芯片会发热,请问这个问题出在哪?谢谢

  • 检查一下buck 1相关的enble信号,外部器件的连接,电感值是否合适。

    将其他两路电压disable后验证是否1.2V是否正常出现。

    最好能把贵司所实际使用的电路图附上来,谢谢!