LM2676T-12

Voltage Regulators - DC DC Switching Regulators Overview

The LM2676T-12/NOPB is a SIMPLE SWITCHER step-down regulator from Texas Instruments, housed in a TO-220-7 package. It operates with an input voltage range of 8V to 40V and provides a fixed 12V output at up to 3A. The device features a 260kHz switching frequency, enabling the use of small external components. It includes internal thermal shutdown and current limit protection.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic buck converter for simplified design
• Fixed 12V output option within the LM267x series
• Built-in thermal shutdown and current limiting protection

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for industrial equipment
• Battery-powered systems requiring efficient step-down conversion
• General-purpose power supplies operating between 8V and 40V

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix NOPB indicates lead-free status and RoHS compliance. Confirm the TO-220-7 package matches the required thermal dissipation needs. Ensure the fixed 12V variant is selected rather than adjustable or other voltage options within the family.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this part when a fixed 12V output is required without external feedback resistors. Consider the TO-220-7 package for through-hole mounting and higher thermal capacity compared to surface-mount variants like the SD or LD packages.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the LM267x SIMPLE SWITCHER family, designed for high-efficiency DC-DC conversion. The 'T' denotes the TO-220-7 package, while '12' specifies the fixed 12V output voltage. It serves as a robust solution for medium-power applications requiring reliable regulation.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Compatible substitutes include LM2676T-ADJ/NOPB for adjustable output or LM2676S-12 for surface-mount TO-263 packaging. Verify pinout compatibility and thermal performance when transitioning between package types.