LM2676S-12/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2676S-12/NOPB is a SIMPLE SWITCHER® step-down voltage regulator manufactured by Texas Instruments. It operates with an input voltage range of 8V to 40V and provides a fixed output voltage of 12V. The device supports a maximum output current of 3A and features a switching frequency of 260kHz. It utilizes a TO-263-7 (D2PAK) surface-mount package. The component functions within a junction temperature range of -40°C to +125°C and includes internal thermal shutdown protection.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-current power switch for efficient buck conversion
• Fixed 12V output option eliminates external feedback resistor networks
• Internal thermal shutdown circuitry protects against overheating

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Power supply stages for industrial control equipment
• Voltage regulation in telecommunications infrastructure

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'S' corresponds to the TO-263-7 package variant when sourcing replacements. Confirm that the '-12' designation strictly indicates the fixed 12V output version, distinct from adjustable or other voltage variants within the LM2676 family. Ensure compatibility with existing PCB footprints designed for D2PAK-7 components during procurement planning.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 12V output is required from an 8V to 40V input source with up to 3A load capacity. The 260kHz switching frequency allows for smaller passive components compared to lower-frequency regulators. Consider the thermal performance of the TO-263-7 package for heat dissipation requirements in the target application environment.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2676 series of SIMPLE SWITCHER regulators, which are known for low external component count and ease of design-in. The series offers various output voltage options and current ratings, with the 'S' suffix denoting the specific surface-mount packaging suitable for automated assembly processes in modern electronics manufacturing.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2676SX-12/NOPB

Voltage Regulators - DC DC Switching Regulators FAQ

Does the LM2676S-12/NOPB support adjustable output voltages?

No, the '-12' suffix indicates a fixed 12V output. Adjustable versions use the '-ADJ' suffix.

What is the maximum input voltage for this regulator?

The maximum input voltage is 40V.