TPS54331GDR

Voltage Regulators - DC DC Switching Regulators Overview

The TPS54331GDR is a non-synchronous buck converter manufactured by Texas Instruments, housed in an 8-SOIC package. It supports an input voltage range of 3.5 V to 28 V and delivers up to 3 A of continuous output current. The device features a fixed switching frequency of 570 kHz and offers adjustable output voltages from 0.8 V to 25 V. Key electrical parameters include a typical shutdown quiescent current of 1 µA and an operating supply current of 110 µA. It operates within a temperature range of -40°C to +150°C TJ.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a low RDS(on) high-side MOSFET for efficient power conversion
• Activates pulse-skipping Eco-mode automatically to enhance light-load efficiency
• Includes overvoltage transient protection to limit startup and transient voltage overshoot
• Features internal slope compensation to simplify external compensation design

Voltage Regulators - DC DC Switching Regulators Applications

• Set-top boxes and CPE devices
• LCD displays and peripheral equipment
• Battery chargers
• Industrial and automotive audio power supplies
• 5-V, 12-V, and 24-V distributed power systems

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'GDR' corresponds to the standard SOIC-8 tape-and-reel packaging configuration. Confirm RoHS compliance status through the official datasheet or manufacturer documentation prior to integration. Ensure the selected component matches the required thermal performance specifications for the intended application environment.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for designs requiring a wide input voltage range up to 28 V with moderate current demands. The fixed 570 kHz frequency allows for smaller passive components compared to lower-frequency alternatives. Consider the non-synchronous topology when evaluating efficiency requirements at heavy loads versus the synchronous variants in the same family.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the TPS54331 series of step-down converters. It is designed as a cost-effective solution for general-purpose DC/DC conversion applications. The device integrates essential protection features such as cycle-by-cycle current limiting, frequency foldback, and thermal shutdown to ensure robust operation under fault conditions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Consult the official TI product selection guide for verified cross-reference part numbers. Verify pinout compatibility and thermal characteristics before substituting with other buck converters.