Texas Instruments

TPS71533QDCKRM3Q1

TPS71533QDCKRM3Q1 Description

The TPS71533QDCKRM3Q1 is an automotive-grade linear voltage regulator designed by Texas Instruments. It is specifically engineered to provide a stable 3.3V output at a maximum current of 50mA. This regulator is optimized for low quiescent current, drawing only 5.8 mA, making it highly efficient for applications where power consumption is a critical concern. The device is rated for an input voltage range up to 24V and features a low dropout voltage of 0.75V at 50mA, ensuring optimal performance even under varying input conditions.

TPS71533QDCKRM3Q1 Features

• Low Quiescent Current: The TPS71533QDCKRM3Q1 boasts a quiescent current of just 5.8 mA, which is significantly lower than many comparable regulators. This feature is crucial for automotive applications where minimizing power draw is essential for battery longevity and overall system efficiency.
• High PSRR: With a power supply rejection ratio (PSRR) of 60dB at 100kHz, the regulator effectively filters out noise from the input power supply, ensuring a clean and stable output voltage. This high PSRR is particularly beneficial in sensitive electronic systems where noise can interfere with performance.
• Fixed Output Voltage: The regulator provides a fixed 3.3V output, simplifying design and ensuring consistent performance across various applications. This fixed output configuration eliminates the need for external voltage-setting components, reducing overall system complexity and cost.
• Over Current Protection: The TPS71533QDCKRM3Q1 includes over current protection, safeguarding the device and downstream components from potential damage due to excessive current draw. This feature enhances the reliability and robustness of the regulator in demanding automotive environments.
• Surface Mount Packaging: The regulator is available in a surface mount package, making it suitable for automated assembly processes and compact PCB designs. The Tape & Reel (TR) packaging format ensures ease of handling and integration into modern manufacturing workflows.
• Compliance and Reliability: The TPS71533QDCKRM3Q1 is REACH unaffected and RoHS3 compliant, meeting stringent environmental and regulatory standards. Additionally, its moisture sensitivity level (MSL) is rated at 1 (unlimited), ensuring reliability and durability in various environmental conditions.

TPS71533QDCKRM3Q1 Applications

The TPS71533QDCKRM3Q1 is ideally suited for a range of automotive applications where low power consumption, high efficiency, and reliability are paramount. Specific use cases include:

• In-Car Electronics: The regulator is well-suited for powering various in-car electronic systems such as infotainment units, GPS navigation systems, and advanced driver assistance systems (ADAS). Its low quiescent current and high PSRR ensure stable operation and minimal power draw, even during periods of low activity.
• Sensors and Actuators: The device can efficiently power sensors and actuators in automotive applications, providing a stable voltage supply while minimizing power consumption. This is particularly important for maintaining system performance and battery life in modern vehicles.
• Microcontrollers and ECUs: The regulator's fixed 3.3V output and low dropout voltage make it an ideal power source for microcontrollers and electronic control units (ECUs) in automotive systems. Its over current protection and high PSRR further enhance the reliability and performance of these critical components.

Conclusion of TPS71533QDCKRM3Q1

The TPS71533QDCKRM3Q1 from Texas Instruments is a highly efficient and reliable linear voltage regulator tailored for automotive applications. Its low quiescent current, high PSRR, and fixed output voltage make it an excellent choice for powering sensitive electronic systems in vehicles. The inclusion of over current protection and its compliance with environmental and regulatory standards further solidify its position as a robust and reliable solution. Whether used in infotainment systems, sensors, or microcontrollers, the TPS71533QDCKRM3Q1 offers superior performance and efficiency, making it a standout choice in the automotive electronics industry.