VREF1SS2VC3FB4ISP5ISN6ISMON7FAULT#8RP9RT10SYNC/SPRD11PWM12PWMTG13VOUT14GND15VIN16VIN17SW18SW19VIN20VIN21GND22GND23BST24INTVCC25VIN26EN/UVLO27CTRL28GND29NC30