Texas Instruments

LM2576S-5.0/NOPB  

DC Switching Voltage Regulators

LM2576S-5.0/NOPB Description

The LM2576S-5.0/NOPB from Texas Instruments is a fixed 5V, 3A step-down (buck) switching voltage regulator, part of the SIMPLE SWITCHER® series. Designed for high-efficiency power conversion, it operates over a wide input voltage range of 4V to 40V, making it suitable for diverse industrial, automotive, and consumer applications. The device integrates a 52kHz switching frequency, reducing external component size while maintaining stable performance. Packaged in a surface-mount DDPAK (TO-263), it is RoHS3 compliant and adheres to REACH regulations, ensuring environmental and safety compliance.

LM2576S-5.0/NOPB Features

• Fixed 5V Output: Eliminates the need for external feedback resistors, simplifying design.
• High Efficiency (Up to 88%): Minimizes power dissipation with non-synchronous rectification.
• Robust Input Range (4V–40V): Handles voltage fluctuations in harsh environments.
• 3A Continuous Output Current: Supports high-power loads without external pass transistors.
• 52kHz Switching Frequency: Balances efficiency and component size, reducing EMI concerns.
• Built-in Protection: Includes thermal shutdown and current limiting for reliability.
• MSL3 (168 Hours): Suitable for extended storage in controlled environments.

LM2576S-5.0/NOPB Applications

• Industrial Power Supplies: Ideal for factory automation and control systems requiring stable 5V rails.
• Automotive Electronics: Powers infotainment, sensors, and ECUs due to wide input tolerance.
• Consumer Electronics: Used in set-top boxes, routers, and LED drivers.
• Battery-Powered Systems: Efficiently steps down higher voltages (e.g., 12V/24V) to 5V for microcontrollers.
• Embedded Systems: Compact design suits space-constrained PCBs in IoT devices.

Conclusion of LM2576S-5.0/NOPB

The LM2576S-5.0/NOPB stands out for its simplicity, reliability, and versatility, offering a cost-effective solution for medium-power DC/DC conversion. Its wide input range, high current capability, and integrated protections make it superior to linear regulators and competitive with newer synchronous buck converters in non-critical efficiency applications. Engineers favor it for rugged, low-BOM designs where proven performance outweighs the need for ultra-high efficiency.

LM2576S-5.0/NOPB Documents

Download datasheets and manufacturer documentation for LM2576S-5.0/NOPB

PCN Assembly/Origin :

GFAB to FFAB 22/Mar/2017      

Datasheets :

LM2576(HV)      

HTML Datasheet :

LM2576(HV)