TPS54290PWPR

Voltage Regulators - DC DC Switching Regulators Overview

The TPS54290PWPR is a fully integrated dual synchronous buck converter from Texas Instruments, designed for high-efficiency power conversion. It features an input voltage range of 4.5 V to 18 V and provides two independent adjustable output channels with current ratings of 1.5 A and 2.5 A respectively. The output voltage ranges from 0.8 V up to DMAX × VIN. This device operates at a fixed switching frequency of 300 kHz and utilizes the SWIFT topology. It is housed in a 16-pin PowerTSSOP package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Fully integrated dual synchronous buck architecture providing two independent regulated outputs
• Wide input voltage capability supporting 4.5 V to 18 V supply rails
• Fixed 300 kHz switching frequency operation for optimized passive component size
• Adjustable output voltage starting from a 0.8 V reference

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial equipment requiring multiple isolated or non-isolated voltage rails
• Consumer electronics with multi-voltage logic and peripheral requirements
• Embedded systems utilizing single-supply architectures
• Point-of-load regulation for digital signal processors

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including the PWPR suffix to ensure correct packaging and temperature grade. Confirm that the specific revision matches design requirements. Check for RoHS compliance status if environmental regulations apply. Ensure ESD handling procedures are followed during assembly due to moisture sensitivity classification.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when dual output regulation is required from a single intermediate bus voltage. The 1.5 A and 2.5 A current capabilities suit moderate load applications. The 300 kHz frequency balances efficiency and component size. Verify that the input voltage remains within the 4.5 V to 18 V window under all operating conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the TPS5429x family of dual synchronous buck converters. The family includes variants with different switching frequencies and current ratings. The TPS54290 specifically denotes the 300 kHz version. These devices share common control loops and protection features typical of the series.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include other TPS5429x family members such as TPS54291 or TPS54292, which offer different switching frequencies. Cross-family replacements require matching input voltage range, total output current capacity, and package dimensions. Verify pin compatibility before substitution.