Texas Instruments

LM2576SX-15

LM2576SX-15 Description

The LM2576SX-15 is a high-performance, fixed-output voltage regulator from Texas Instruments, designed to deliver a stable 15V output at a maximum current of 3A. This device is part of the SIMPLE SWITCHER® series, known for its ease of use and robust performance. The LM2576SX-15 operates within an input voltage range of 4V to 40V, making it suitable for a wide variety of power supply applications. It features a buck topology with a switching frequency of 52kHz, ensuring efficient power conversion and minimal electromagnetic interference (EMI).

The LM2576SX-15 is housed in a surface-mount DDPAK package, which is ideal for compact and high-density PCB designs. Despite its small form factor, the device is capable of handling high currents and voltages, making it a versatile choice for various electronic systems. The regulator is RoHS3 compliant and REACH unaffected, ensuring it meets the latest environmental and regulatory standards. It also has a moisture sensitivity level (MSL) of 3, allowing for 168 hours of exposure to moisture without degradation.

LM2576SX-15 Features

• Fixed Output Voltage: The LM2576SX-15 provides a stable 15V output, ensuring consistent performance in applications requiring a fixed voltage supply.
• Wide Input Voltage Range: With an input voltage range of 4V to 40V, this regulator can accommodate a variety of power sources, from batteries to industrial power supplies.
• High Current Capability: The device is capable of delivering up to 3A of output current, making it suitable for high-power applications.
• Efficient Buck Topology: The buck topology ensures high efficiency and minimal power loss, contributing to longer battery life and reduced heat generation.
• Surface-Mount Packaging: The DDPAK package is ideal for surface-mount technology (SMT) applications, enabling compact and reliable PCB designs.
• Regulatory Compliance: The LM2576SX-15 is RoHS3 compliant and REACH unaffected, ensuring it meets stringent environmental and safety standards.
• Moisture Resistance: With an MSL of 3, the device can withstand up to 168 hours of moisture exposure, making it suitable for humid environments.

LM2576SX-15 Applications

The LM2576SX-15 is ideal for a range of applications where a stable, high-current power supply is required. Its wide input voltage range and fixed output voltage make it suitable for:

• Industrial Power Supplies: Providing stable power to industrial equipment and machinery.
• Battery Chargers: Efficiently charging batteries with a wide input voltage range.
• Telecommunications Equipment: Supplying power to routers, switches, and other telecom devices.
• Automotive Electronics: Powering automotive systems with varying input voltages.
• Consumer Electronics: Driving high-current devices such as amplifiers and motors.

Conclusion of LM2576SX-15

The LM2576SX-15 is a versatile and efficient voltage regulator that offers a stable 15V output at up to 3A. Its wide input voltage range, efficient buck topology, and surface-mount packaging make it an excellent choice for a variety of high-current applications. Despite being marked as obsolete, the LM2576SX-15 remains a reliable and robust solution for power supply needs. Its regulatory compliance and moisture resistance further enhance its suitability for modern electronic systems. For engineers and designers seeking a reliable and efficient power solution, the LM2576SX-15 is a proven choice.