TPS54040DGQR

Voltage Regulators - DC DC Switching Regulators Overview

The TPS54040DGQR is a Texas Instruments step-down DC/DC converter featuring an integrated high-side MOSFET. It supports an input voltage range of 3.5 V to 42 V and delivers up to 500 mA output current. The adjustable output voltage spans from 0.8 V to 39 V. Operating with a switching frequency between 100 kHz and 2.5 MHz, it utilizes current-mode control for simple external compensation. The device incorporates Eco-Mode technology to minimize quiescent current at light loads, reducing no-load regulated input supply current to 116 µA.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a high-side MOSFET within a compact surface-mount package for space-constrained designs.
• Employs current-mode control architecture to provide stable regulation and simplified external component selection.
• Features Eco-Mode operation to significantly reduce power consumption during light-load or no-load conditions.

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial and commercial low-power systems powered by 12V or 24V rails
• Automotive aftermarket accessories including video, GPS, and entertainment units
• Portable battery-powered equipment requiring efficient step-down conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix DGQR corresponds to the HVSSOP-10 package when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure design compatibility with the specified operating temperature range and thermal requirements for the selected enclosure environment.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for applications requiring a wide input voltage range up to 42 V with moderate output current capabilities. It is suitable where board space is limited due to its small footprint. Consider the fixed internal switching frequency options if synchronization is not required. Evaluate thermal performance based on the maximum junction temperature rating of 150°C.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the TPS54040 family of SWIFT converters from Texas Instruments. It shares architectural similarities with other members like the TPS54240 but offers lower output current capacity. The series is designed for general-purpose power management in portable and industrial electronics.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include TPS54040ADGQR and TPS54040A variants within the same family. Verify pinout and electrical specifications match before replacing existing designs.