Texas Instruments

LM2598SX-3.3

LM2598SX-3.3 Description

The LM2598SX-3.3 is a fixed output voltage regulator from Texas Instruments, designed to deliver a stable 3.3V output at a maximum current of 1A. This regulator is part of the SIMPLE SWITCHER® series, known for its high efficiency and ease of use in power management applications. The LM2598SX-3.3 operates within an input voltage range of 4.5V to 40V, making it suitable for a wide variety of power supply designs. It features a switching frequency of 150kHz, which allows for the use of smaller inductors and capacitors, reducing the overall footprint of the power supply.

LM2598SX-3.3 Features

• Fixed Output Voltage: The LM2598SX-3.3 provides a fixed output voltage of 3.3V, ensuring consistent power delivery to sensitive electronic components.
• Wide Input Voltage Range: With an input voltage range of 4.5V to 40V, this regulator can handle a variety of input sources, making it versatile for different applications.
• High Efficiency: The buck topology of the LM2598SX-3.3 ensures high efficiency, reducing power loss and heat generation.
• Surface Mount Packaging: Available in a surface mount package (DDPAK), the LM2598SX-3.3 is ideal for compact designs and automated assembly processes.
• Moisture Sensitivity Level (MSL) 3: The regulator has a moisture sensitivity level of 3, allowing for 168 hours of exposure, making it suitable for various manufacturing environments.
• REACH Compliance: The LM2598SX-3.3 is REACH unaffected, ensuring compliance with environmental and safety regulations.
• 150kHz Switching Frequency: This frequency enables the use of smaller passive components, contributing to a more compact and cost-effective design.

LM2598SX-3.3 Applications

The LM2598SX-3.3 is ideal for applications requiring a stable 3.3V power supply with a maximum current of 1A. Its wide input voltage range and high efficiency make it suitable for:

• Consumer Electronics: Powering devices such as smartphones, tablets, and portable gaming consoles.
• Industrial Equipment: Providing reliable power to control systems, sensors, and actuators.
• Telecommunications: Supplying power to base stations, routers, and other networking equipment.
• Automotive Electronics: Ensuring stable power delivery to infotainment systems, electronic control units, and other automotive components.

Conclusion of LM2598SX-3.3

The LM2598SX-3.3 from Texas Instruments is a robust and efficient power management solution, offering a fixed 3.3V output with a maximum current of 1A. Its wide input voltage range, high efficiency, and compact surface mount packaging make it an excellent choice for a variety of applications. Despite being marked as obsolete, the LM2598SX-3.3 remains a reliable option for engineers and designers seeking a stable and efficient power supply solution.