VIN1SW2BOOT3AGND4PVIN5PVIN6PVIN7PVIN8PVIN9PVIN10PVIN11SW12SW13SW14SW15SW16SW17PGND18SW22AGND23ILIM24PVCC25VCC26FB27NC28EN29PGOOD30SS31FREQ32NC33NC34AGNDP1PVINP2SWP3