Texas Instruments

LM2576HVSX-3.3  

DC Switching Voltage Regulators

LM2576HVSX-3.3 Description

The LM2576HVSX-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 regulator is part of the SIMPLE SWITCHER® series, known for its high efficiency and ease of use in a variety of power management applications. It operates within an input voltage range of 4V to 60V, making it suitable for a wide range of input power sources. The regulator employs a buck topology and features a switching frequency of 52kHz, ensuring efficient power conversion with minimal noise.

The LM2576HVSX-3.3 is housed in a surface-mount DDPAK package, which is ideal for compact designs and high-density PCB layouts. Despite its small form factor, it offers robust performance and reliability. The regulator is REACH unaffected and has a moisture sensitivity level (MSL) of 3, indicating it can withstand up to 168 hours of exposure to moisture without degradation. It is important to note that this product is currently marked as obsolete by the manufacturer, Texas Instruments.

LM2576HVSX-3.3 Features

• Fixed Output Voltage: The LM2576HVSX-3.3 provides a stable 3.3V output, which is ideal for applications requiring a precise and consistent power supply.
• Wide Input Voltage Range: With an input voltage range of 4V to 60V, this regulator can accommodate various power sources, enhancing its versatility.
• High Output Current: Capable of delivering up to 3A of output current, it supports high-power applications.
• Buck Topology: Utilizing a buck converter topology, the regulator ensures efficient power conversion with minimal energy loss.
• Switching Frequency: The 52kHz switching frequency balances efficiency and noise, making it suitable for both high-performance and low-noise applications.
• Surface-Mount Package: The DDPAK package is designed for surface-mount technology (SMT), enabling compact and reliable PCB designs.
• Moisture Sensitivity Level: MSL 3 (168 hours) ensures the regulator can withstand prolonged exposure to moisture without compromising performance.
• REACH Compliance: The regulator is REACH unaffected, ensuring compliance with environmental regulations.

LM2576HVSX-3.3 Applications

The LM2576HVSX-3.3 is well-suited for a variety of applications where a stable 3.3V power supply is required. Its wide input voltage range and high output current make it ideal for:

• Embedded Systems: Providing power to microcontrollers, sensors, and other low-voltage components.
• Communication Equipment: Supplying power to various modules in routers, switches, and other networking devices.
• Industrial Automation: Powering control systems, PLCs, and other industrial electronics.
• Consumer Electronics: Used in devices such as set-top boxes, smart meters, and other consumer products that require a stable 3.3V supply.

Conclusion of LM2576HVSX-3.3

The LM2576HVSX-3.3 from Texas Instruments is a reliable and efficient fixed output voltage regulator, offering a stable 3.3V output at up to 3A. Its wide input voltage range, buck topology, and surface-mount package make it a versatile solution for various power management applications. While it is marked as obsolete, the regulator remains a robust choice for existing designs and legacy systems. For new projects, engineers may consider exploring alternative models from Texas Instruments' extensive portfolio of power management solutions.

LM2576HVSX-3.3 Documents

Download datasheets and manufacturer documentation for LM2576HVSX-3.3

Datasheets :

LM2576(HV)      

HTML Datasheet :

LM2576(HV)