Division resistors' value :9 `, x Z5 J/ u9 J* y
( 1 ) No load current -> check your converter's stability in no-load, & _3 W: b' v5 h1 x make sure you have no dummy -load requirement. 8 X9 V3 U# _1 O0 X7 l- Q; O" `( 2 ) Efficiency -> check your efficiency / power consumption spec w.r.t. the division resistor.