TPS54428DDA - Texas Instruments Synchronous Step-Down SWIFT™ Converter

The TPS54428DDA from Texas Instruments is a highly efficient, synchronous step-down DC-DC converter, part of the SWIFT™ family of products. This compact solution is designed to provide a reliable power source for low-voltage applications in computing, networking, and consumer electronics.

Key Features:

• Input Voltage Range: The TPS54428DDA operates with an input voltage range of 4.5V to 18V, making it versatile for various applications.
• Output Current: It is capable of delivering up to 4A of continuous output current, ensuring sufficient power for demanding loads.
• High Efficiency: With integrated low R<sub>DS(on) MOSFETs, the device achieves high efficiency, which is crucial for thermal performance and energy savings.
• Adjustable Switching Frequency: The switching frequency is adjustable from 200kHz to 1.2MHz, allowing designers to balance efficiency with component size.
• Output Voltage: The output voltage is adjustable from 0.76V to 7V, providing flexibility to power a wide range of ICs.
• Thermal Protection: The TPS54428DDA includes an over-temperature protection feature that safeguards the device under extreme conditions.
• Power Good Output: A power good output provides a signal when the output voltage is within regulation, which is useful for sequencing and monitoring purposes.

Applications:

The TPS54428DDA is suitable for a variety of applications, including:

• Point of Load (POL) solutions for FPGAs, DSPs, and ASICs
• Embedded computing systems
• Networking equipment such as switches and routers
• Consumer electronics including set-top boxes and gaming consoles

With its compact size, the TPS54428DDA comes in a small 3x3mm SON-10 package, making it an excellent choice for space-constrained applications. Its advanced features and comprehensive protection circuitry ensure reliable operation and extend the lifespan of the end product.