VOS1AGND2VCC3PVCC4PGND5GL6PGND7PGND8PGND9SW10SW11SW12SW13SW14SW15SW16SW17SW18SW19PGND20PGND21PGND22PGND23PGND24VIN25VIN26VIN27VIN28VIN29VIN30N/C31PHASE32BOOT33PWM34EN35TMON/FLT36N/C37IMON38REFIN39PGND40GL41