National Semiconductor Tariff Inquiry

LM2596SX-5.0

LM2596SX-5.0 Description

The LM2596SX-5.0 is a fixed-output, step-down (buck) switching voltage regulator from National Semiconductor's SIMPLE SWITCHER® series. Designed for high-efficiency power conversion, it delivers a stable 5V output at up to 3A from an input voltage range of 4.5V to 40V. Operating at a 150kHz switching frequency, this non-synchronous rectifier IC is optimized for simplicity and reliability in demanding applications. Housed in a surface-mount DDPAK package, it is suitable for compact designs and industrial environments.

LM2596SX-5.0 Features

• Wide Input Range (4.5V–40V): Supports diverse power sources, including automotive and industrial supplies.
• High Efficiency (Up to 88%): Minimizes heat dissipation with integrated buck topology.
• Fixed 5V Output: Eliminates external feedback resistors, simplifying design.
• 3A Continuous Output Current: Robust enough for powering microcontrollers, sensors, and peripherals.
• 150kHz Switching Frequency: Balances efficiency and noise performance.
• Non-Synchronous Rectification: Reduces cost while maintaining performance.
• Thermal Shutdown & Current Limiting: Protects against overloads and overtemperature.
• Compact DDPAK Package: Ideal for space-constrained PCB layouts.

LM2596SX-5.0 Applications

The LM2596SX-5.0 excels in systems requiring efficient step-down conversion:

• Industrial Automation: Powering PLCs, motor controllers, and sensors.
• Automotive Electronics: Suitable for infotainment, telematics, and 12V/24V bus systems.
• Consumer Electronics: Used in set-top boxes, routers, and LED drivers.
• Embedded Systems: Reliable voltage regulation for microcontrollers (e.g., Arduino, Raspberry Pi add-ons).
• Test & Measurement Equipment: Provides stable power for precision instruments.

Conclusion of LM2596SX-5.0

The LM2596SX-5.0 stands out for its robust performance, wide input range, and ease of integration, making it a preferred choice for engineers seeking a cost-effective, high-current buck regulator. Its fixed 5V output and thermal protection ensure reliability in harsh environments, while the DDPAK package caters to modern PCB designs. Whether for industrial, automotive, or consumer applications, this IC delivers a balance of efficiency, durability, and simplicity.