VOS1AGND2VDD3PVDD4PGND5NC6PGND7PGND8PGND9SW10SW11SW12SW13SW14SW15SW16SW17SW18SW19PGND20PGND21PGND22PGND23PGND24VIN25VIN26VIN27VIN28VIN29VIN30NC31BOOTR32BOOT33PWM34EN/FCCM35TAO/FLT36LSET37IOUT38REFIN39PGND40NC41