GND29GND28ISP27ISN26TG25ISMON24IVINCOMP23OPENLED#22SHORTLED#21PWM20SS19VREF18CTRL17FB16DIM15RT14VC13GND12SYNC/SPRD11INTVCC10OVLO9EN/UVLO8VIN7IVINP6IVINN5SW4SW3SW2GND1