The RTKA223011DR0040BU demonstration board is a high voltage buck converter. It demonstrates a low-cost high performance non-isolated AC/DC conversion solution. It operates from a universal input of 85VAC to 265VAC and has a 24V output capable of up to 200mA of output current. The board has built-in overcurrent, short-circuit, input brownout, and over-temperature protection. RTKA223011DR0040BU comes with an RAA223011 in an TSOT23-5 package.