The RAA223011 evaluation board (RTKA223011DE0010BU) is a high voltage buck converter that is designed to demonstrate a low-cost high performance non-isolated AC/DC conversion from a universal input of 85VAC to 265VAC, to a 12V output with the output current up to 300mA. The RTKA223011DE0010BU has built-in overcurrent, short-circuit, input brownout, and over-temperature protection. The board is designed on a single sided PCB with half-wave input rectification. RTKA223011DE0010BU comes with an RAA223011 in an 8LD SOIC package.