The TPS562219ADDFR is a high-current, synchronous step-down DC-DC converter from Texas Instruments, designed to deliver up to 6A of continuous output current with high efficiency across a wide input voltage range of 4.5V to 38V. Housed in a compact DQFN-20 package, this device supports adjustable output voltages from 0.8V to VIN (regulated), making it ideal for power-intensive applications in industrial, automotive, and data center systems. Its integrated high-side and low-side MOSFETs minimize external components while ensuring robust performance under heavy loads.

Key Features

Operating at a fixed switching frequency of 550 kHz, the TPS562219ADDFR achieves efficiencies exceeding 90% under nominal loads, thanks to advanced current-mode control and low quiescent current (12 µA in shutdown mode). It features programmable soft-start, output voltage tracking, and adjustable slope compensation for stable operation in high-duty-cycle conditions. Comprehensive protection includes overcurrent protection (OCP), overtemperature shutdown (OTS), and under-voltage lockout (UVLO). Its wide input voltage tolerance accommodates unregulated power sources or noisy industrial environments.

Applications

Primarily used in industrial automation, server power supplies, and automotive systems, this converter efficiently powers FPGAs, GPUs, and other high-current digital loads. Its capability to handle input voltages up to 38V makes it suitable for automotive 12V/24V systems and industrial 24V rails. It is also employed in telecom infrastructure, LED lighting drivers, and battery-operated equipment requiring stable, high-current outputs. Its compact size and high power density enable seamless integration into space-constrained designs without compromising thermal performance.

Summary

The TPS562219ADDFR stands out for its high-current capability, wide input voltage range, and robust protection features, making it a premier choice for power-dense applications in industrial, automotive, and data center environments. Its integrated MOSFETs and advanced control mechanisms simplify design while ensuring reliability in harsh conditions. This converter is essential for engineers seeking a high-performance, compact solution to deliver precise and efficient power in demanding systems.