输入端是5.0V驱动,设计按照手册,反馈电阻已是并联后的电阻45k
并联输出设计为1.0V,实际测得只有0.6V
请问这是什么原因导致的
输入端是5.0V驱动,设计按照手册,反馈电阻已是并联后的电阻45k
并联输出设计为1.0V,实际测得只有0.6V
请问这是什么原因导致的
Hu huhong,
For 1V output with 2 parallel it is correct that the bottom feedback resistor should be calculated as 45.3k. If the output voltage instead is 0.6V this can indicate that there is a short between FB and output pins or that the FB pin is floating.
Thanks
Hu huhong,
For 1V output with 2 parallel it is correct that the bottom feedback resistor should be calculated as 45.3k. If the output voltage instead is 0.6V this can indicate that there is a short between FB and output pins or that the FB pin is floating.
Thanks