TLE4473GV552AUMA1

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The TLE4473GV552AUMA1 is a monolithic integrated linear voltage regulator from the OPTIREG™ linear family, designed for automotive applications. It features two fixed output channels: Output 1 provides 300 mA at 5 V (±2%), and Output 2 provides 180 mA at 5 V (±2%). The device operates within an input voltage range of 5.6 V to 42 V and supports junction temperatures from -40 °C to +150 °C. Key electrical parameters include a quiescent current of 250 µA, dropout voltages up to 600 mV, line regulation of 25 mV, and load regulation of 50 mV. It is AEC-Q100 qualified and housed in a SOIC-12 package.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Dual independent 5 V outputs with high current capability for simultaneous power supply requirements
• Integrated watchdog timer and reset circuits for enhanced system reliability and fault monitoring
• Robust protection mechanisms including overtemperature, overload, and short-circuit protection

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Automotive electronic control units requiring dual regulated 5 V rails
• Sensor interface circuits needing stable low-noise power supplies
• General purpose automotive power distribution systems

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the complete ordering code TLE4473GV552AUMA1 against official Infineon documentation to ensure correct suffix identification. Confirm that the specific variant matches the required output configuration and package type. Check for any recent lifecycle status updates or alternative recommendations from the manufacturer before finalizing procurement plans.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when dual identical 5 V outputs are required for automotive loads. Ensure the input voltage remains within the specified 5.6 V to 42 V range. Consider the thermal performance given the 150 °C maximum junction temperature rating. Verify that the integrated reset and watchdog functions meet the system's safety logic requirements without external components.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This part belongs to the TLE4473 series of OPTIREG™ linear regulators. It shares the same functional architecture as variants like TLE4473GV53 but differs in output voltage specifications. The series is characterized by its automotive qualification and integrated diagnostic features, distinguishing it from standard industrial LDOs.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

TLE4473GV55AUMA1 is a confirmed substitute with identical dual 5 V output specifications and pinout compatibility.