LM2676T-12/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2676T-12/NOPB is a SIMPLE SWITCHER® step-down voltage regulator from Texas Instruments, housed in a TO-220-7 package. It provides a fixed 12V output with a maximum current of 3A. The device operates within an input voltage range of 8V to 40V and features a switching frequency of 260kHz. It supports junction temperatures from -40°C to +125°C and includes internal thermal shutdown and current limiting for robust protection.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated buck topology simplifies design by requiring minimal external components
• Built-in thermal shutdown and current limit protect against overload conditions
• Fixed 12V output eliminates the need for external feedback resistors

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Power supplies for industrial control equipment
• Battery-powered devices requiring efficient step-down conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix 'NOPB' confirms lead-free and RoHS compliance as per Texas Instruments standards. Ensure the 'T' designation matches the required TO-220-7 through-hole package variant. Cross-reference the full part number against official TI documentation to confirm the fixed 12V output specification and avoid confusion with adjustable or other voltage variants within the LM2676 family.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 12V output at up to 3A is required from an 8V to 40V input source. The TO-220-7 package is suitable for applications where through-hole mounting and adequate heat dissipation are priorities. Consider the 260kHz switching frequency for balancing component size and efficiency requirements in standard power supply designs.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2676 series of SIMPLE SWITCHER regulators, designed for high-efficiency step-down conversion. The series offers various output voltages and packages, including surface-mount and through-hole options. The LM2676T-12/NOPB specifically targets applications needing a reliable, fixed 12V rail with integrated protection features in a durable through-hole form factor.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2676T-12/NOPB is functionally equivalent to LM2676T-12. Other variants like LM2676SX-12/NOPB offer the same electrical performance but in a different TO-263 surface-mount package.