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TPS73733 不能输出3.3V电压?



这是图纸。。

表现为焊接第一块时 测试输出电压为0.6V 。焊接第二块测试也是0.6V。第三块输出电压等于输入电压 第四块也是输出等于输入。崩溃,焊接平台是防静电的。

这片子不会这么脆弱吧