TPS61040AQDBVRQ1

Overview

The TPS61040AQDBVRQ1 is an AEC-Q100 qualified high-frequency boost converter designed for automotive applications. It operates with an input voltage range of 1.8 V to 6 V and delivers up to 400 mA output current. The device features a maximum switching frequency of 1 MHz and supports adjustable output voltages up to 28 V. It includes shutdown functionality, low static current of 28 uA, and operates within a temperature range of -40°C to +125°C in a SOT-23-5 package.

Feature Summary

• AEC-Q100 qualified for automotive reliability standards
• High-frequency operation up to 1 MHz for compact design
• Integrated shutdown control for power management
• Low quiescent current for extended battery life

Applications

• Automotive LCD bias supply generation
• White LED backlight power supplies
• Small to medium automotive display systems
• General automotive DC-DC step-up conversion

Procurement Notes

Verify the specific suffix 'AQ' indicates automotive grade qualification and 'RQ1' denotes tape and reel packaging configuration. Confirm that the component status is active, as some sources indicate potential obsolescence warnings for related variants. Ensure the ordering part number matches the exact package and temperature rating requirements for your application design.

Selection Notes

Select this component when automotive certification (AEC-Q100) is mandatory for the system. It is suitable for designs requiring a wide input voltage range from 1.8 V to 6 V. Consider the 400 mA current limit and 28 V maximum output voltage constraints. The SOT-23-5 package is ideal for space-constrained PCB layouts compared to larger packages.

Part Context

This part belongs to the TPS6104x-Q1 family of low-power DC-DC boost converters from Texas Instruments. It shares architectural similarities with non-automotive counterparts like the TPS61040 but includes enhanced reliability testing and qualification for harsh automotive environments. The family focuses on efficient power management for display and lighting applications.

Replacement Considerations

The TPS61040QDBVRQ1 is a closely related variant within the same series. Verify if the specific 'A' prefix in the AQDBVRQ1 designation implies distinct automotive screening or packaging differences compared to standard Q1 parts. Cross-reference datasheets for pin compatibility and electrical parameter equivalence.