AGND31BST30SW29PVIN28PVIN27PVIN26PVIN25PVIN24PVIN23PVIN22PVIN21SW20PGND19PGND18PGND17PGND16PGND15SW14SW13SW12SW11AGND10VCC9VIN8AGND7FB6PGOOD5SS4TON3EN2ILIM1