LM2596S-12

Voltage Regulators - DC DC Switching Regulators Overview

The LM2596S-12 is a SIMPLE SWITCHER power converter from Texas Instruments, functioning as a 3A step-down voltage regulator. It operates at a fixed switching frequency of 150 kHz and accepts an input voltage range of 4.5V to 40V. This specific variant provides a fixed output voltage of 12V. The device utilizes a TO-263 surface-mount package (D2PAK) with five terminals. It integrates internal frequency compensation and protection features including current limiting and thermal shutdown.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Fixed 12V output configuration for simplified design
• Integrated 150 kHz switching frequency reduces external filter size
• Built-in current limit and thermal shutdown protection

Voltage Regulators - DC DC Switching Regulators Applications

• Embedded system power supplies
• Direct-in-board regulation from bus supplies
• Pre-regulator circuits for switching regulators

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix designation against official Texas Instruments documentation to confirm the specific package type and lead-free status. Ensure compatibility with the required thermal management solutions given the TO-263 form factor. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a stable 12V output is required from a higher input voltage rail up to 40V. The fixed output eliminates the need for external feedback resistors found in adjustable variants. Consider the 150 kHz frequency trade-off between component size and efficiency compared to lower or higher frequency alternatives.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2596 series of SIMPLE SWITCHER converters, originally developed by National Semiconductor and now manufactured by Texas Instruments. The series includes fixed voltage options such as 3.3V, 5.0V, and 12V, alongside an adjustable version. The 'S' suffix denotes the surface-mount D2PAK/TO-263 package.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2596S-12/NOPB is a confirmed equivalent variant indicating lead-free compliance.