Texas Instruments

LMR51440SDRRR  

DC Switching Voltage Regulators

LMR51440SDRRR Description

The LMR51440SDRRR is a highly efficient, adjustable output buck regulator designed by Texas Instruments. It is part of the Power Management Integrated Circuits (PMIC) category and is ideal for applications requiring a robust and reliable power solution. This regulator features a wide input voltage range of 4V to 36V and can deliver up to 4A of output current. The output voltage is adjustable from 0.8V to 28V, making it highly versatile for various electronic systems.

LMR51440SDRRR Features

• Adjustable Output Voltage: The LMR51440SDRRR offers an adjustable output voltage range from 0.8V to 28V, providing flexibility to meet diverse application requirements.
• Wide Input Voltage Range: With an input voltage range of 4V to 36V, this regulator can operate across a broad spectrum of power supplies, ensuring compatibility with multiple power sources.
• High Output Current: Capable of delivering up to 4A of output current, it is suitable for high-power applications where significant current is required.
• Synchronous Rectification: The inclusion of synchronous rectification enhances efficiency, reducing power loss and improving overall system performance.
• Switching Frequency Range: The regulator operates within a switching frequency range of 200kHz to 1.1MHz, allowing for optimization of efficiency and size in different applications.
• Positive Output Configuration: The positive output configuration ensures stable and reliable power delivery.
• Compliance and Reliability: The LMR51440SDRRR is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards. It also has a moisture sensitivity level (MSL) of 2 (1 Year), making it suitable for various environmental conditions.
• Mounting and Packaging: The surface mount type and tape & reel (TR) packaging make it easy to integrate into modern PCB designs.

LMR51440SDRRR Applications

The LMR51440SDRRR is well-suited for a variety of applications where efficient power management is critical. Some specific use cases include:

• Telecommunications Equipment: Ideal for powering base stations, routers, and other telecom devices that require stable and efficient power supply.
• Industrial Systems: Suitable for industrial automation equipment, PLCs, and other systems that demand high reliability and efficiency.
• Consumer Electronics: Can be used in high-power consumer devices such as gaming consoles, high-end laptops, and other electronics that require robust power management.
• Automotive Applications: Given its wide input voltage range and high efficiency, it is suitable for automotive electronics where power supply conditions can vary widely.

Conclusion of LMR51440SDRRR

The LMR51440SDRRR from Texas Instruments stands out as a versatile and efficient buck regulator, offering a wide range of input and output voltage capabilities along with high output current. Its synchronous rectification and adjustable output voltage make it a superior choice for applications requiring high efficiency and flexibility. The regulator's compliance with environmental and safety standards further enhances its appeal for modern electronics. Whether for telecommunications, industrial systems, consumer electronics, or automotive applications, the LMR51440SDRRR provides a reliable and efficient power management solution.

LMR51440SDRRR Documents

Download datasheets and manufacturer documentation for LMR51440SDRRR

Datasheets :

LMR514x0