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TPS53319

TPS53319采用WEBENCH生成电路图以及BOM.

输入12V--22V 输出5V 10A.

实际电路:电压提升不到5V,只在3V左右。后把RF直接连到VREG(fsw=970K)输出电压为5V,但是接负载时(不大于500mA)时停止输出,空载重新上电后才会再输出5V。

完全没有带载能力,是什么原因呢?困惑。

TEST2.pdf