The TPS55340RTER is a highly efficient synchronous step-down DC-DC converter designed for use in a wide range of industrial and consumer applications. This device is capable of providing up to 3A output current with an input voltage range of 4.5V to 17V, making it suitable for a variety of power supply designs. With an integrated 65mΩ high side switch and 40mΩ synchronous rectifier, the TPS55340RTER achieves high efficiency over a wide load range. It also features adjustable switching frequency up to 1.5MHz, allowing for optimization of size and efficiency in the power supply design. The TPS55340RTER offers a range of protection features including thermal shutdown, overcurrent protection, and undervoltage lockout, ensuring the safety and reliability of the system. It is available in a small 3mm x 3mm QFN-16 package, making it ideal for space-constrained applications. Overall, the TPS55340RTER provides a compact, reliable, and high-performance solution for DC-DC power conversion needs.