The SY8253AIC is an adjustable, DC-DC step-down converter manufactured by Silergy and is RoHS compliant. It provides a regulated output voltage that can be varied from a minimum of 4.5V to a maximum of 23V, with a tolerance of ±0.6V. Its maximum output current is 3A, and it comes in a thermal-enhancement TSOT23-8 package. The advantages of this part include low quiescent current, low profile design, high efficiency, high reliability, and wide operating temperature range. It is ideal for applications such as telecommunications, automotive, and industrial equipment.