Infineon TLS4120D0EPV33: A Comprehensive Technical Overview

The Infineon TLS4120D0EPV33 represents a pinnacle of integration and efficiency in the realm of low-dropout (LDO) linear voltage regulators. Designed to meet the rigorous demands of modern automotive and industrial applications, this device combines robust performance with exceptional reliability. This overview delves into the key technical attributes that make this regulator a preferred choice for engineers.

At its core, the TLS4120D0EPV33 is a 42V, 150mA ultra-low quiescent current LDO regulator. Its ability to handle a wide input voltage range from 3.0V up to 42V makes it exceptionally versatile, suitable for use in environments subject to significant voltage transients, such as those found in 12V and 24V automotive systems. A defining feature is its remarkably low quiescent current of just 19 µA (typical) under full load. This ultra-low IQ is critical for applications requiring always-on functionality, as it minimizes the discharge of the battery, thereby extending its operational life.

The device provides a fixed, precisely regulated output voltage of 3.3V, which is a standard supply level for microcontrollers, sensors, and other digital logic. The output voltage accuracy is guaranteed to be within ±2% over the entire temperature, load, and input voltage range, ensuring stable and reliable operation for connected components.

Built-in comprehensive protection features are a cornerstone of its design. These include overcurrent protection (OCP), overtemperature shutdown (TSD), and reverse polarity protection. Furthermore, it incorporates an enable (EN) pin, allowing for external control of the regulator's operation, which facilitates sophisticated power management sequencing and further contributes to system-level energy savings.

The TLS4120D0EPV33 is housed in a PG-SOT223-3 package, offering a compact footprint while providing good thermal performance. Its specified operating junction temperature range of -40 °C to 150 °C ensures functionality under the most severe environmental conditions.

ICGOODFIND: The Infineon TLS4120D0EPV33 stands out as an exemplary power management solution, masterfully balancing ultra-low power consumption, a wide operating voltage range, and robust integrated protection. It is an ideal, reliable choice for powering critical loads in harsh automotive and industrial environments.

Keywords:

Low Quiescent Current (IQ)

Automotive Grade

42V Input Voltage

LDO Voltage Regulator

Power Management