Texas Instruments

LM2585SX-3.3  

DC Switching Voltage Regulators

LM2585SX-3.3 Description

The LM2585SX-3.3 is a fixed-output voltage regulator from Texas Instruments, designed to provide a stable 3.3V output at a maximum current of 3A. This device is part of the SIMPLE SWITCHER® series, known for its ease of use and high performance. The LM2585SX-3.3 operates within an input voltage range of 4V to 40V, making it suitable for a wide variety of power supply applications. It features a switching frequency of 100kHz, which helps in minimizing the size of external components while maintaining high efficiency.

This regulator is housed in a surface-mount package, specifically the DDPAK, which is ideal for compact and high-density designs. The LM2585SX-3.3 is designed for positive output configuration and does not include a synchronous rectifier, which simplifies the circuit design. It is classified under the category of Power Management (PMIC) and is REACH unaffected, ensuring compliance with environmental regulations.

LM2585SX-3.3 Features

• Fixed Output Voltage: The LM2585SX-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 accommodate various power sources, enhancing its versatility.
• High Current Capability: The device can deliver up to 3A of output current, making it suitable for applications requiring high power.
• 100kHz Switching Frequency: This frequency allows for the use of smaller inductors and capacitors, reducing the overall footprint and cost of the power supply.
• Surface Mount Technology (SMT): The DDPAK package is designed for surface-mount applications, enabling high-density board layouts and automated assembly processes.
• Positive Output Configuration: The regulator is configured for positive output, which is commonly required in most electronic systems.
• SIMPLE SWITCHER® Series: Part of the SIMPLE SWITCHER® series, this regulator offers ease of design and high performance.
• Moisture Sensitivity Level (MSL) 3: This level indicates that the device can be safely stored for up to 168 hours in a controlled environment, ensuring reliability during manufacturing processes.

LM2585SX-3.3 Applications

The LM2585SX-3.3 is ideal for a range of applications where a stable and efficient power supply is required. Some specific use cases include:

• Consumer Electronics: Ideal for powering devices such as smartphones, tablets, and portable gaming consoles that require a stable 3.3V supply.
• Industrial Equipment: Suitable for industrial control systems, sensors, and actuators that operate within a wide input voltage range.
• Telecommunications: Can be used in base stations, routers, and other telecom equipment where high reliability and efficiency are crucial.
• Automotive Electronics: Applicable in automotive systems such as infotainment, telematics, and advanced driver-assistance systems (ADAS).
• Medical Devices: Ideal for medical equipment that requires precise and stable power delivery, such as diagnostic tools and monitoring devices.

Conclusion of LM2585SX-3.3

The LM2585SX-3.3 from Texas Instruments is a robust and versatile fixed-output voltage regulator designed to meet the demands of modern electronic systems. Its wide input voltage range, high current capability, and compact surface-mount package make it an excellent choice for a variety of applications. The 100kHz switching frequency ensures high efficiency and reduced component size, while the SIMPLE SWITCHER® series design simplifies the implementation process. Although the product is now obsolete, its unique features and performance benefits continue to make it a valuable component in many power management designs.

LM2585SX-3.3 Documents

Download datasheets and manufacturer documentation for LM2585SX-3.3

Datasheets :

LM2585      

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LM2585