Designed for optimum efficiency and power density, this module achieves an ultra high efficiency rating of 91% at 3.3V full load, eliminating the need for a heat sink in most applications. Thanks to the ultra high efficiency of this converter, the power dissipation is such that for most applications a heat sink is not required. In addition, the QRW series supports future migration of semiconductor and microprocessor supply voltages down to 1.0V.