Texas Instruments

LM2585T-3.3

LM2585T-3.3 Description

The LM2585T-3.3 is a fixed-output voltage regulator from Texas Instruments, designed to deliver a stable 3.3V output at a maximum current of 3A. This regulator is part of the SIMPLE SWITCHER® series, known for its ease of use and high performance in power management applications. The LM2585T-3.3 operates within a wide input voltage range, from 4V to 40V, making it suitable for a variety of power supply designs. It features a switching frequency of 100kHz, which allows for efficient power conversion and reduced component size in the overall circuit design. The regulator is housed in a through-hole TO220 package, which is robust and suitable for high-current applications. Despite its obsolete status, the LM2585T-3.3 remains a reliable choice for applications requiring a fixed 3.3V output with a high current capability.

LM2585T-3.3 Features

• Fixed Output Voltage: The LM2585T-3.3 provides a stable 3.3V output, ensuring consistent power delivery to sensitive electronic components.
• Wide Input Voltage Range: With an input voltage range of 4V to 40V, this regulator can handle a variety of input sources, making it versatile for different power supply configurations.
• High Current Capability: The regulator is capable of delivering up to 3A of output current, making it suitable for applications requiring high power.
• Switching Frequency: Operating at a switching frequency of 100kHz, the LM2585T-3.3 ensures efficient power conversion and allows for the use of smaller inductors and capacitors in the design.
• Positive Output Configuration: The regulator provides a positive output voltage, which is ideal for most electronic systems.
• Topology Flexibility: The LM2585T-3.3 supports multiple topologies, including boost, flyback, and forward converter, offering design flexibility for various power supply architectures.
• Moisture Sensitivity Level: With an MSL of 1 (unlimited), the regulator is suitable for use in environments with varying humidity levels without the need for special handling.
• REACH Compliance: The LM2585T-3.3 is REACH unaffected, ensuring compliance with environmental regulations and making it suitable for global markets.

LM2585T-3.3 Applications

The LM2585T-3.3 is ideal for a range of applications where a stable 3.3V output and high current capability are required. Some specific use cases include:

• Embedded Systems: Providing power to microcontrollers, FPGAs, and other digital circuits that require a stable 3.3V supply.
• Industrial Equipment: Powering sensors, actuators, and control systems in industrial automation and manufacturing processes.
• Telecommunications: Supplying power to base stations, routers, and other telecom equipment that need reliable power sources.
• Consumer Electronics: Used in devices such as routers, set-top boxes, and other consumer products that require a stable power supply.
• Automotive Electronics: Suitable for powering electronic control units (ECUs) and other automotive systems that need a fixed 3.3V supply.

Conclusion of LM2585T-3.3

The LM2585T-3.3 from Texas Instruments is a robust and versatile fixed-output voltage regulator that offers high performance and reliability. Its wide input voltage range, high current capability, and efficient switching frequency make it suitable for a variety of applications in the electronics industry. Despite being marked as obsolete, the LM2585T-3.3 remains a reliable choice for power management designs requiring a stable 3.3V output. Its compliance with environmental regulations and moisture sensitivity standards further enhances its suitability for global markets. For applications needing a fixed 3.3V supply with high current capability, the LM2585T-3.3 is an excellent choice.