Texas Instruments

LM3485MM  

DC DC Switching Controllers

LM3485MM Description

The LM3485MM is a high-performance DC-DC switching controller designed by Texas Instruments. This device is specifically tailored for buck topology applications, offering a robust solution for power management in various electronic systems. The LM3485MM features a wide input voltage range of 4.5V to 35V, making it suitable for a broad spectrum of power supply requirements. It is housed in an 8-pin small outline package (8VSSOP), which is ideal for surface-mount applications, ensuring compact and efficient integration into modern electronic designs.

LM3485MM Features

• Output Type: The LM3485MM is designed as a transistor driver, providing a positive output configuration. This feature ensures that it can effectively drive external transistors, enhancing its versatility in various power conversion applications.
• Wide Input Voltage Range: With a supply voltage range of 4.5V to 35V, the LM3485MM can accommodate a wide array of input power sources, making it highly adaptable to different power supply scenarios.
• Single Output: The controller is designed with a single output, which simplifies the design process and reduces complexity in applications requiring a single regulated output.
• 100% Duty Cycle Capability: The LM3485MM supports a maximum duty cycle of 100%, enabling efficient power conversion even at low input-to-output voltage ratios.
• Surface Mount Technology: The surface-mount package type ensures that the LM3485MM can be easily integrated into compact and space-constrained designs, enhancing its suitability for modern electronics.
• Moisture Sensitivity Level 1: The LM3485MM has a moisture sensitivity level of 1, indicating that it is not affected by moisture, which is crucial for reliable performance in various environmental conditions.
• REACH Compliance: The LM3485MM is REACH unaffected, ensuring compliance with stringent environmental regulations and making it suitable for global markets.

LM3485MM Applications

The LM3485MM is ideally suited for applications requiring efficient power conversion and regulation. Its wide input voltage range and single output configuration make it particularly useful in the following scenarios:

• Power Supplies: The LM3485MM can be used in a variety of power supply applications, including those in consumer electronics, industrial equipment, and automotive systems.
• Battery Chargers: Its ability to handle a wide input voltage range makes it suitable for battery charging applications, where input voltage can vary significantly.
• Point-of-Load Converters: The compact 8VSSOP package and surface-mount technology make the LM3485MM an excellent choice for point-of-load converters in high-density electronic systems.
• Telecommunications: The LM3485MM can be employed in telecommunications infrastructure, providing reliable power conversion for various components within the system.

Conclusion of LM3485MM

The LM3485MM from Texas Instruments is a versatile and efficient DC-DC switching controller designed for buck topology applications. Its wide input voltage range, single output configuration, and 100% duty cycle capability make it a robust solution for power management in various electronic systems. The surface-mount package and moisture sensitivity level 1 ensure that it can be easily integrated into modern, compact designs while maintaining reliability in different environmental conditions. Although marked as "Not For New Designs," the LM3485MM remains a reliable choice for existing applications and offers significant advantages over similar models in terms of performance and adaptability.

LM3485MM Documents

Download datasheets and manufacturer documentation for LM3485MM

UNKNOWN TYPE :

8-VSSOP      

Reference Design Library :

LM3485EVAL: 3.3V @ 1A, 7 ~ 28 Vin      

Design Resources :

LM3485 Design with WEBENCH® Power Designer      

PCN Design/Specification :

VSSOP Pkg Copper Wire 07/Jun/2013