FB_B21EN32CLKIN3AGND4SCL5SDA6EN17FB_B08VIN_B09SW_B010PGND_B0111SW_B112VIN_B113FB_B114EN215PGOOD16AGND17VANA18nINT19NRST20FB_B321VIN_B322SW_B323PGND_B2324SW_B225VIN_B226AGND27