TPS54240QDGQRQ1

Voltage Regulators - DC DC Switching Regulators Overview

The TPS54240QDGQRQ1 is an automotive-grade, synchronous step-down DC/DC converter from Texas Instruments. It supports a wide input voltage range of 3.5 V to 42 V and delivers up to 2.5 A of output current. The device features adjustable output voltages from 800 mV to 39 V with a fixed switching frequency of 2.5 MHz. It operates within an extended temperature range of -40°C to +125°C and includes Eco-Mode for enhanced light-load efficiency. Key electrical parameters include a typical quiescent current of 138 µA and integrated overcurrent protection.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for high reliability in vehicle environments
• SWIFT topology integrates power MOSFETs and control circuitry to minimize external component count
• Eco-Mode enables pulse-skipping operation to significantly improve efficiency under light load conditions
• Flexible compensation design allows simple external network configuration for stable regulation

Voltage Regulators - DC DC Switching Regulators Applications

• On-board infotainment systems requiring stable power delivery
• Telematics control units and gateway modules
• Body control modules (BCM) and lighting controllers
• Industrial automation equipment operating in harsh environments

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the presence of the Q1 suffix to confirm automotive grade status and AEC-Q100 compliance. Ensure the DGQR package variant matches your PCB footprint requirements. Cross-reference the manufacturer datasheet revision level to validate pinout compatibility and thermal characteristics before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing for automotive applications requiring robust performance across extreme temperatures. The 2.5 MHz switching frequency allows for smaller passive components compared to lower-frequency alternatives. Consider the 42 V input tolerance for systems subject to load dump or transient voltage spikes common in automotive networks.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the TPS54240 family of SWIFT converters. While standard versions exist for industrial use, the Q1 designation indicates specific manufacturing controls and testing protocols required for automotive deployment. It shares core electrical specifications with non-automotive variants but differs in reliability certification and long-term availability commitments.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

TPS54240DGQRQ1 serves as the direct automotive equivalent to the commercial TPS54240DGQR. Verify that substitute parts maintain AEC-Q100 qualification if used in certified automotive assemblies.