TLE4274GSV33HTSA1

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

The TLE4274GSV33HTSA1 is a monolithic integrated low dropout linear voltage regulator from Infineon's OPTIREG™ line, designed for automotive applications. It provides a fixed 3.3 V output with a maximum load current of 400 mA. The device operates within an input voltage range of 4.7 V to 40 V and features a typical dropout voltage of 250 mV at full load. It includes comprehensive protection mechanisms such as overcurrent, thermal shutdown, reverse polarity, and short-circuit protection. Certified to AEC-Q100 standards, it functions reliably across a junction temperature range of -40°C to 150°C.

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

• Integrated automotive-grade LDO regulator with high reliability
• Comprehensive protection against overcurrent, thermal overload, and reverse polarity
• Low dropout performance for efficient power management
• Fixed 3.3 V output suitable for sensitive electronic loads

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

• Automotive microcontroller (MCU) power supply
• Sensor interface circuits
• Infotainment system components
• Body control modules

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

Verify the specific suffix HTSA1 to confirm the tape-and-reel packaging format and ensure compatibility with automated assembly processes. Confirm that the component meets the required AEC-Q100 qualification levels for your specific automotive application environment. Check for any obsolescence notices or recommended new designations from the manufacturer before finalizing procurement plans.

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

Select this component when a robust, fixed 3.3 V supply is needed for automotive electronics requiring high surge immunity and wide input voltage tolerance. Ensure the thermal management strategy accommodates the SOT223-4 package dissipation characteristics under expected load conditions. Verify that the 400 mA output current capability aligns with the peak demands of the target circuit without exceeding safe operating limits.

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

This part belongs to the TLE4274 family of OPTIREG™ linear regulators, which are engineered specifically for demanding automotive environments. The family offers various fixed output voltages and packages to support diverse power distribution needs in vehicles. These regulators are characterized by their high rejection ratio and stability, making them standard choices for powering digital logic and analog sensors in harsh electromagnetic and thermal conditions.

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

Direct substitutes include TLE42744GSV33HTMA1 and TLE42744GSV33HUMA1. Verify pinout compatibility and electrical specifications match exactly before substitution.