The SD6704STR is a surface-mount LED driver integrated circuit from Silan Microelectronics. It comes in an SOP-7-225-1.27 package and is RoHS-compliant, meaning it is free of hazardous substances and fully recyclable. The IC has three integrated LED channels that can drive up to 150mA per channel with a typical efficiency of over 90%. Additional features include an output current adjustment pin, a dim pin for dimming control, a thermal protection function, and a wide working input voltage range from 2 to 5.5 volts. It can be used in a variety of LED lighting applications such as automotive, display backlight, signage lighting, and white goods.