Texas Instruments

LM5165YQDRCTQ1  

DC Switching Voltage Regulators

LM5165YQDRCTQ1 Description

The LM5165YQDRCTQ1 is a high-performance, fixed-output voltage regulator designed by Texas Instruments for automotive applications. This DC switching voltage regulator features a wide input voltage range from 3V to 65V, making it suitable for a variety of power supply requirements. The regulator is capable of delivering a stable 3.3V output voltage with a maximum output current of 150mA. Its positive output configuration ensures compatibility with most electronic systems.

The LM5165YQDRCTQ1 employs a buck topology, which is known for its efficiency and ability to handle high input voltages. The regulator's switching frequency can go up to 600kHz, allowing for the use of smaller inductors and capacitors in the design, thereby reducing the overall footprint and cost of the power supply circuit. Additionally, the regulator includes a synchronous rectifier, which enhances efficiency by reducing power losses during the switching process.

LM5165YQDRCTQ1 Features

• Wide Input Voltage Range: The LM5165YQDRCTQ1 operates efficiently over a wide input voltage range of 3V to 65V, making it versatile for various power supply applications.
• High Efficiency: The buck topology and synchronous rectifier ensure high efficiency, which is crucial for automotive applications where power dissipation and heat generation need to be minimized.
• Fixed Output Voltage: The regulator provides a stable 3.3V output voltage, which is ideal for powering microcontrollers, sensors, and other low-voltage electronics.
• High Switching Frequency: The regulator can operate at frequencies up to 600kHz, enabling the use of smaller passive components and reducing the overall size of the power supply.
• Automotive Grade: Certified automotive for applications, the LM5165YQDRCTQ1 meets stringent reliability and performance standards required for automotive electronics.
• Compliance and Safety: The regulator is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards.
• Moisture Sensitivity Level: With an MSL rating of 2 (1 Year), the regulator is suitable for surface-mount assembly processes without the need for special handling precautions.

LM5165YQDRCTQ1 Applications

The LM5165YQDRCTQ1 is well-suited for a variety of automotive applications where a stable and efficient power supply is required. Some specific use cases include:

• Automotive Electronics: Ideal for powering electronic control units (ECUs), infotainment systems, and advanced driver-assistance systems (ADAS).
• Power Management: Suitable for applications requiring efficient power conversion and management, such as battery-powered devices and portable electronics.
• Industrial Applications: Can be used in industrial control systems where a wide input voltage range and high efficiency are critical.

Conclusion of LM5165YQDRCTQ1

The LM5165YQDRCTQ1 is a robust and efficient DC switching voltage regulator designed to meet the demanding requirements of automotive applications. Its wide input voltage range, high efficiency, and fixed output voltage make it an ideal choice for powering various electronic systems. The inclusion of a synchronous rectifier and the ability to operate at high switching frequencies further enhance its performance and reduce the overall size and cost of the power supply. With its automotive-grade certification, compliance with environmental and safety standards, and moisture sensitivity level, the LM5165YQDRCTQ1 is a reliable and versatile solution for modern automotive electronics.

LM5165YQDRCTQ1 Documents

Download datasheets and manufacturer documentation for LM5165YQDRCTQ1

Manuals :

Wide Vin DC/DC Power Solutions Guide      

PCN Design/Specification :

LM5165-Q1 27/Jun/2017