face for Register Control Thin QFN 6x6 40-Lead Package RoHS Compliant and 100% Lead (Pb)-Free Applications TFT LCD Monitor Panel TFT LCD TV Panel www.richtek.com 1 June 13, 2013 Pin Assignment Conceptual CS902-A-R Pin Number 1,2 22,24,27 3 4 5 6 7 8 9 10 11 12 13,14 15,16 17 18,19 20 21 23 25.