Is it possible to run LT3669 Buck converter in CC mode?
I want to charge super-cap on buck output with 200mA/15.2V.
this is not possible by the part itself. You would need to add some kind of current sensing and tailor a feedback based on the current measurement result onto the FB pin.
As the LT3669 has the IOLink Slave function integrated as well: Your IOlink application/device does not need the buck output voltage?
The LT3669 is made for 100mA Iout, the LT3669-2 can deliver up to 300mA. (guaranteed minimum, typical will be more).
Parts which we recommend for charging supercaps can be found here:
Thank you. Yes I will use LT3669-2. Because there is no LT3669 simulation model in LTSpice, which model you recommend to use for build and test current feedback functionality. I need simulation model just for step-down converter which is similar to LT3669 step-down converter.