The TPS54040DGQR is a 3.5V to 42V, 0.5A step-down switching regulator with Swift™ technology from Texas Instruments. This voltage regulator integrates a high-frequency oscillator and output voltage tolerance of ±3.5% and an input voltage range of 3.5V to 42V in order to provide a solution for driving wide input voltage rail applications with extended shelf life and high efficiency. It is suitable for a variety of design applications, including distributed power, battery-powered products, and server power. Additionally, the TPS54040DGQR features an adjustable frequency range of 500kHz to 2MHz, as well as internal compensation, soft start-up and power profile optimization to further reduce component count. Additionally, the device can operate in either Constant-Frequency or Burst-Mode™ operation for further optimization of power conversion.