The TPS54561DPRT from Texas Instruments is a highly efficient, monolithic synchronous step-down DC-DC converter that is well-suited for systems requiring a compact, high-performance power solution. Designed to operate from a 4.5 V to 60 V input voltage range, this versatile converter can deliver up to 5 A of continuous output current to a regulated output voltage that can be adjusted from 0.8 V to 58 V, making it ideal for a wide variety of applications.
With an integrated 90-mΩ high-side MOSFET and 40-mΩ synchronous rectifier, the TPS54561DPRT ensures high efficiency across a broad load range. This efficiency is further enhanced by its pulse-width modulation (PWM) controller, which operates at a fixed frequency of 100 kHz and can also be synchronized to an external clock signal in the range of 100 kHz to 700 kHz.
One of the key features of the TPS54561DPRT is its Eco-mode™ operation, which reduces the quiescent current and maintains high efficiency during light load conditions. This makes the device particularly suitable for battery-powered and energy-sensitive applications where power conservation is critical.
The converter is protected by a comprehensive suite of safety features, including overcurrent protection, overvoltage protection, and thermal shutdown. Additionally, it offers an adjustable slow start-up and undervoltage lockout, ensuring reliable operation during start-up and under-voltage conditions. The TPS54561DPRT also supports pre-bias startup, which prevents glitches when the device is enabled into a pre-charged output.
The TPS54561DPRT is available in a thermally enhanced 10-pin HTSSOP PowerPAD™ package, which is designed to improve thermal performance and reliability. Its compact form factor and minimal external component requirements make it a space-saving solution for power supply designs.
Whether it's for industrial, automotive, or consumer electronics, the TPS54561DPRT provides a flexible and robust power management solution that engineers can rely on for their high-voltage and high-current applications.