Hello BGX561,
Thanks for reaching out with your question.
It is possible to set up a converter as a constant current source. Please take a look at some of these designs that us the TPS40211 as constant current source.
http://www.ti.com/tool/PMP8943 …
Other Parts Discussed in Thread: LM3407 , LM3414 , TPS40211 I am trying to implement a LED driver using LM3407 IC to drive three 1 Watt LEDs connected in series(350mA). The circuit is not performing the buck operation as the input power is reflected at the…