Texas Instruments

LM2586SX-3.3

LM2586SX-3.3 Description

The LM2586SX-3.3 is a high-performance, fixed-output voltage regulator designed for a wide range of power management applications. Manufactured by Texas Instruments, this IC is part of the SIMPLE SWITCHER® series, known for its ease of use and high efficiency. The LM2586SX-3.3 features a fixed output voltage of 3.3V and is capable of delivering up to 3A of output current through its switch. It operates over an input voltage range of 4V to 40V, making it suitable for a variety of power supply designs.

This regulator supports multiple topologies, including boost, flyback, and forward converter configurations, providing design flexibility for different power management needs. The LM2586SX-3.3 operates within a switching frequency range of 100kHz to 200kHz, enabling efficient power conversion with minimal external components. The device is housed in a surface-mount DDPAK package, which is available in tape and reel format for automated assembly processes.

LM2586SX-3.3 Features

• Fixed Output Voltage: The LM2586SX-3.3 provides a stable 3.3V output, ensuring consistent power delivery to sensitive electronic components.
• High Input Voltage Range: With an input voltage range of 4V to 40V, this regulator can accommodate a wide variety of power sources, from batteries to industrial power supplies.
• High Output Current Capability: The ability to deliver up to 3A of output current makes it suitable for applications requiring high power output.
• Multiple Topologies: Supports boost, flyback, and forward converter configurations, offering flexibility in power supply design.
• Efficient Switching Frequency: Operating within a frequency range of 100kHz to 200kHz, the LM2586SX-3.3 ensures efficient power conversion with reduced component count.
• Surface-Mount Packaging: The DDPAK package is ideal for surface-mount assembly, providing robustness and ease of integration into modern PCB designs.
• Moisture Sensitivity Level 3: Suitable for applications requiring up to 168 hours of moisture resistance, ensuring reliability in various environmental conditions.
• REACH Unaffected: Complies with REACH regulations, ensuring environmental safety and regulatory compliance.

LM2586SX-3.3 Applications

The LM2586SX-3.3 is ideal for a variety of applications that require a reliable and efficient power supply solution. Some specific use cases include:

• Consumer Electronics: Ideal for powering devices such as smartphones, tablets, and portable gaming consoles, where a stable 3.3V supply is crucial for performance and reliability.
• Industrial Equipment: Suitable for industrial applications such as PLCs, sensors, and control systems, where a wide input voltage range and high output current are necessary.
• Telecommunications: Can be used in base stations, routers, and other telecom equipment that require efficient power conversion and minimal footprint.
• Automotive Systems: Applicable in automotive electronics, such as infotainment systems and advanced driver assistance systems (ADAS), where robustness and reliability are paramount.

Conclusion of LM2586SX-3.3

The LM2586SX-3.3 is a versatile and efficient power management IC designed to meet the demands of modern electronic systems. Its fixed 3.3V output, wide input voltage range, and high output current capability make it suitable for a broad range of applications. The support for multiple topologies and efficient switching frequency further enhance its flexibility and performance. Despite being marked as obsolete, the LM2586SX-3.3 remains a reliable choice for designers seeking a straightforward and effective power supply solution.