TPS54528DDAR

Voltage Regulators - DC DC Switching Regulators Overview

The TPS54528DDAR is a Texas Instruments synchronous step-down converter featuring an input voltage range of 4.5V to 18V and a maximum output current of 5A. It utilizes D-CAP2 mode control for fast transient response without external compensation. The device supports an adjustable output voltage from 0.76V to 6V and operates at a fixed switching frequency of 650kHz. It includes Eco-mode for high efficiency under light loads, integrated power MOSFETs, and a thermal pad package (SOIC-8-EP).

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Adaptive on-time D-CAP2 mode control enables rapid transient response without requiring external compensation components.
• Integrated Eco-mode operation ensures high conversion efficiency during light-load conditions by seamlessly switching between PWM and burst modes.
• Proprietary circuitry allows stable operation with low equivalent series resistance (ESR) output capacitors, including POSCAP, SP-CAP, and ceramic types.

Voltage Regulators - DC DC Switching Regulators Applications

• Digital TV power supplies
• Blu-ray player power systems
• Low-voltage system bus regulators

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'DDAR' corresponds to the tape-and-reel packaging format required for automated surface-mount assembly. Confirm that the SOIC-8-EP package variant matches the thermal management requirements of the target PCB layout. Ensure compatibility with the specified 650kHz switching frequency regarding electromagnetic interference constraints in the final design.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a 5A synchronous buck solution is needed within a 4.5V to 18V input window. It is suitable for designs prioritizing minimal external component count due to the D-CAP2 architecture. Consider this part for applications requiring efficient light-load performance through Eco-mode and compatibility with low-ESR ceramic output capacitors.

Voltage Regulators - DC DC Switching Regulators Part Context

The TPS54528DDAR belongs to the TPS5452x family of SWIFT converters from Texas Instruments. This series integrates power switches and control logic into a compact footprint, simplifying design for consumer electronics. The DDAR suffix specifically denotes the reel-packaged version of the DDA (SOIC-8-EP) physical package, distinguishing it from tube-packaged variants like the TPS54528DDA.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The TPS54328DDAR serves as a lower-current alternative offering 3A output capability within the same input voltage range and control architecture. Designers requiring higher current capacity may consider the TPS54526, which provides 5.5A output while maintaining similar input specifications and D-CAP2 control features.