The TPS54428DDAR is a high-performance, synchronous step-down converter integrated by Texas Instruments, designed for use in various power management applications. This efficient and compact device operates over a wide input voltage range and provides up to 4A of continuous output current. Its advanced design makes it an ideal solution for powering core voltages, I/Os, and system auxiliary supplies in computing, networking, and consumer electronics.

Key Features

• Wide Input Voltage Range: The TPS54428DDAR supports an input voltage range from 4.5V to 18V, accommodating a variety of power sources.
• High-Efficiency Synchronous Mode: The converter's synchronous mode operation enhances efficiency by minimizing power loss during the switching process, making it suitable for battery-powered applications.
• Adjustable Switching Frequency: With a switching frequency that can be adjusted from 200kHz to 2.2MHz, the device allows for flexibility in component selection and optimization of size and efficiency.
• Integrated MOSFETs: The inclusion of internal high-side and low-side MOSFETs simplifies the design and reduces external component count.
• Stable with Low ESR Output Ceramic Capacitors: The TPS54428DDAR is designed to be stable with ceramic output capacitors, ensuring reliability and performance stability over a range of conditions.
• Thermal and Overcurrent Protection: Built-in thermal shutdown and overcurrent protection features safeguard the device and the system against excessive temperatures and current overloads.

Applications

The versatility of the TPS54428DDAR makes it suitable for a wide range of applications, including:

• Point of Load (POL) solutions
• High-performance DSP and FPGA power supplies
• Networking and telecommunication equipment
• Consumer electronics
• Computing peripherals and motherboards

The TPS54428DDAR comes in a 3.5mm x 3.5mm SON-10 package, offering a compact footprint for space-constrained applications. With its robust feature set and Texas Instruments' reputation for quality, this voltage regulator is an excellent choice for designers seeking a reliable and efficient power management solution.