Hello
My LEDs is 17-19V@70mA ,when I set R1//R2=18Ω,Vout=14.51V,but Iled =17.28mA, FB and SW waveform is show at below ; Qustion 1: so why Iled is not correct ? and it is not just support output 17mA even if caused by current limited.
when I set R=36Ω,Iled=34.41mA, it seems is correct.
Qustion 2: is LM2703's Toff time is 400ns descripped in datasheet ? but from SW wavefrom shows it is not 400ns
expect your reply,thanks