LM2596SX-12/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2596SX-12/NOPB is a monolithic integrated circuit step-down voltage regulator from the SIMPLE SWITCHER family, manufactured by Texas Instruments. It operates at a fixed switching frequency of 150 kHz and provides a regulated output voltage of 12 V with a maximum load current capability of 3 A. The device accepts an input voltage range from 4.5 V to 40 V and utilizes a TO-263 (D2PAK) surface-mount package. Designed for high efficiency, it incorporates internal frequency compensation and a fixed-frequency oscillator, requiring minimal external components for implementation.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Fixed 12 V output voltage configuration
• Integrated thermal shutdown and current limit protection
• External shutdown pin for low-power standby operation

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation in distributed power systems
• Pre-regulator stages for switching regulators
• Efficient buck converters for battery-powered applications

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including the suffix /NOPB to ensure compliance with RoHS standards and absence of lead. Confirm the package variant matches the required TO-263 footprint for PCB layout compatibility. Cross-reference the manufacturer datasheet to validate the specific batch markings and date codes against project requirements.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 12 V output is required from an input source between 4.5 V and 40 V. It is suitable for designs needing up to 3 A continuous load current with minimal external component count. Consider the TO-263 package for adequate thermal dissipation without additional heatsinking in moderate duty cycle applications.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2596 series of SIMPLE SWITCHER power converters. The series includes adjustable versions and other fixed output voltages such as 3.3 V and 5.0 V. The 'SX' designation indicates the surface-mount TO-263 package, while '/NOPB' signifies lead-free and halogen-free construction compliant with environmental directives.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Compatible substitutes include LM2596SX-12 and LM2596S-12/NOPB. Verify that alternative sources maintain the same 150 kHz switching frequency and 3 A current rating. Ensure the replacement package matches the TO-263-5 pinout for direct board integration.