The SD6210A is a DC-DC converters fixed 1 2.8V 5V 5V up to 250mA SOT-23-6 RoHS manufactured by SHOUDING. It has an efficiency of up to 96% and features ultra-fine voltage output adjustability. The maximum output current of 250mA is suitable for various communication loads. The full range of protection includes over-voltage, over-temperature, and reverse-polarity protection. The SD6210A also has a few unique features such as over-current limiting, thermal shutdown, soft-start, active current limiter (ACL), and output power consumption measuring. This part is compliant to RoHS and fully meets the requirements of Lead-Free Applications.