Infineon TLE42962GV33HTSA1 3V Low-Dropout Voltage Regulator: Features and Applications

In the realm of power management for automotive and industrial electronics, the demand for robust, efficient, and reliable voltage regulation is paramount. The Infineon TLE42962GV33GV33HTSA1 stands out as a high-performance 3.3V low-dropout (LDO) voltage regulator engineered to meet these stringent requirements. This device is specifically designed to provide a stable and clean voltage supply to sensitive components, such as microcontrollers, sensors, and ASICs, even in the harshest operating environments.

Key Features of the TLE42962GV33HTSA1

This LDO regulator integrates a host of advanced features that make it a superior choice for critical applications.

Very Low Dropout Voltage: A defining characteristic is its extremely low dropout voltage, typically 200 mV at a 150 mA load. This allows the device to continue regulating the output voltage effectively even when the input voltage dips very close to 3.3V, maximizing efficiency and extending battery life in automotive systems.

High Accuracy and Low Noise: The regulator offers high output voltage accuracy of ±2%, ensuring that connected circuits receive a precise and dependable voltage. Furthermore, its low noise output is crucial for powering analog and RF circuits without introducing significant interference.

Comprehensive Protection Functions: Infineon has equipped this IC with a full suite of protective features. These include overcurrent protection (OCP), overtemperature protection (OTP), and reverse polarity protection. This robust safeguarding makes it exceptionally durable against fault conditions like short circuits or accidental battery misconnection.

Wide Input Voltage Range: With an operating input voltage range from 4 V to 42 V, and the ability to withstand transient voltages up to 45 V, it is perfectly suited for the demanding 12V and 24V automotive power systems that experience large load dumps and voltage spikes.

Enable Function and Status Output: The enable pin (EN) allows for external control of the regulator, facilitating power management strategies to reduce quiescent current in standby modes. The error flag (ERR) provides a signal to the microcontroller if the output voltage falls out of regulation, enabling immediate system diagnostics.

Primary Applications

The combination of its rugged design and precise regulation makes the TLE42962GV33HTSA1 ideal for a wide array of applications:

Automotive Body Control Modules (BCMs): Powering microcontrollers and sensors that control windows, lights, and seats.

Infotainment and Cluster Systems: Providing a clean supply for audio amplifiers, display controllers, and navigation systems.

Engine Control Units (ECUs): Regulating voltage for sensors and processing units within the powertrain.

Industrial Control Systems: Used in PLCs, factory automation, and instrumentation where power supply noise and reliability are critical.

Always-On Power Supplies: Its low quiescent current makes it suitable for systems that require continuous power, such as alarm systems and keyless entry modules.

ICGOODFIND Summary

The Infineon TLE42962GV33HTSA1 is a highly integrated and resilient LDO voltage regulator that delivers exceptional performance and reliability for harsh electrical environments. Its very low dropout, high accuracy, and comprehensive protection suite make it an ideal solution for automotive and industrial applications where power integrity is non-negotiable.

Keywords:

Low-Dropout (LDO) Regulator

Automotive Grade

Voltage Regulation

Overcurrent Protection

Wide Input Voltage Range