5 4 3 2 1 D D 5 6 7 8 4 1 C 2 3 BOOST 16 PGOOD TG 15 VRNG SW 14 PGND 13 BG 12 RUN/SS 4 FCB 5 ITH 6 SGND INTVcc 11 7 ION VIN 10 8 VFB EXTVcc 1 2 3 C 5 6 7 8 4 1 2 3 9 B B A A 5 4 3 2 1