Can LTC3855 realize 5V in 5V out？
We have one situation, which is 5V in, or 12V in. No matter which one, we hope that the output is 5V.
If 12V in, LTC3855 can buck the 12V into 5V, that is no problem.
Here is the queation, if 5V in, Can LTC3855 shut down the buck function, and output 5V ?
Expecting the answer.
No. The LTC3855 does not have a pass thru function. If the input voltage is 5V and the feedback divider is designed for a 5V output, then the converter will operate at full duty cycle which is 95…
Thank you Mike.
It just like what I was thinking. The output value is approching 5V, but will never come to 5V.