TLE9271QXXUMA2

Power Management - Specialized Overview

The TLE9271QXXUMA2 is an OPTIREG DC/DC System Basis Chip (SBC) from Infineon Technologies, designed for automotive applications. It integrates a high-efficiency SMPS with a 5V output voltage, a secondary 5V LDO providing 100 mA, and communication interfaces including one CAN FD transceiver supporting up to 5 Mbit/s and two LIN transceivers compliant with LIN2.2/J2602 standards. The device features a boost converter rated at 6.5 V or 8 V, comprehensive diagnostic and supervision functions, and low-power fault-safe operation modes. It operates within an input voltage range of 5.5 V to 28 V and supports temperatures from -40°C to +150°C in a VQFN-48 package.

Power Management - Specialized Feature Summary

• Integrates efficient switch-mode power supply with linear regulator and multiple communication transceivers
• Supports high-speed CAN FD and dual LIN bus communication protocols
• Includes advanced diagnostic, supervision, and wake-up capabilities for robust system management

Power Management - Specialized Applications

• Body Control Modules
• Gateway Applications

Power Management - Specialized Procurement Notes

Verify the specific suffix against official Infineon documentation to confirm pinout and feature variations. Ensure compatibility with required automotive standards such as ISO 11898-2 for CAN FD and LIN2.2/J2602 for local interconnect networks. Confirm thermal performance requirements align with the specified operating temperature range and package dissipation characteristics before finalizing procurement.

Power Management - Specialized Selection Notes

Select this component when a compact solution combining power regulation and multi-protocol communication is required. It is suitable for designs needing integrated CAN FD and LIN connectivity alongside efficient DC/DC conversion. Consider the VQFN-48 package constraints and ensure the application benefits from the integrated boost converter and low standby current specifications typical of this SBC family.

Power Management - Specialized Part Context

This part belongs to the scalable OPTIREG SBC family, which combines power management with communication interfaces. It is engineered to withstand severe automotive conditions and meets OEM requirements. The device simplifies system design by integrating essential power and communication functions into a single monolithic IC, reducing board space and component count compared to discrete solutions.

Power Management - Specialized Replacement Considerations

Check for direct substitutes within the TLE9271QX series, such as TLE9271QXV33XUMA2, which offers a 3.3V main regulator instead of 5V. Verify that any alternative maintains compatible pinouts and communication interface speeds. Ensure the replacement meets the same automotive qualification standards and thermal performance requirements.