ITEM NAME:3 Pieces Boost Buck DC Adjustable Step up down Converter XL6009 Module Voltage.3 XL6009 DC Boost Buck Step Up Down Converter Module. Module Propertiesï ¼Å¡Non- isolated boost (BOOST). Model Specificationï ¼Å¡DSN6000AUD Automatic Buck module. Input Currentï ¼Å¡3A ( max ), no-load 18mA (5V input, 8V output, no-load is less than 18mA. ).