The MIC2171WU is a fixed frequency, current-mode, synchronous step-down switching regulator produced by Microchip. It has a wide input voltage range of 4.0V to 30V, an output voltage range of 0.8V to 20V, and an output current of 2.5A. It has surge protection and input capacitor buffering. The integrated slave FETs make the MIC2171WU a very cost-effective solution while still maintaining a high performance, and its low power consumption and high efficiency makes it suitable for applications such as automotive, industrial, and communication systems. The MIC2171WU also has a programmable soft-start, programmable frequency, and current-limit protection for safety. This chip is RoHS compliant, meaning it is compliant with European Union regulations for the use of hazardous substances in electronic equipment.