Cheap And Discounts 5PCS/LOT SY8303AIC SY8263AIC TSOT-23-8 Screen printing XD bB Synchronous step-down DC-DC regulator In stock New original Wholesale. Buy Directly From Merchant Caicai Dianzi Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.