TPS65381QDAPRQ1

Overview

The TPS65381QDAPRQ1 is a multi-rail power management IC (PMIC) designed for automotive microcontroller applications. It integrates five output regulators within a 32-pin HTSSOP package, supporting an input voltage range of 4.5V to 36V. The device provides up to 1.3A from its switching regulator and 300mA from linear regulators. Certified to AEC-Q100 standards with a -40°C to +125°C operating temperature range, it features low quiescent current of 75µA and supports functional safety requirements.

Feature Summary

• Integrates multiple voltage regulation rails including switching and linear outputs for comprehensive system power distribution
• Designed specifically for industrial functional safety applications in automotive environments
• Supports wide input voltage ranges suitable for automotive load dump and cold crank conditions

Applications

• Automotive microcontroller power supply systems
• Industrial functional safety circuits
• Multi-rail power distribution units

Procurement Notes

Verify the specific suffix 'Q' against official Texas Instruments documentation to confirm exact electrical characteristics and qualification status. Ensure the ordering part number matches the required package variant and temperature grade. Cross-reference the datasheet revision date to validate current specifications before finalizing procurement decisions.

Selection Notes

Select this component when designing automotive systems requiring integrated multi-rail power management with functional safety certification. Consider the 32-pin HTSSOP package constraints and thermal performance relative to the total output current requirements. Evaluate the input voltage compatibility with the vehicle's electrical architecture.

Part Context

This device belongs to the TPS65381A series of professional power management ICs. It serves as a specialized solution for automotive microcontrollers, consolidating multiple power rails into a single compact package. The series is characterized by its focus on functional safety compliance and robust operation in harsh automotive environments.

Replacement Considerations

Consult the official TPS65381A datasheet for confirmed substitute part numbers or pin-compatible alternatives within the same family.