LM2671N-12

Voltage Regulators - DC DC Switching Regulators Overview

The LM2671N-12 is a monolithic integrated circuit from the Texas Instruments SIMPLE SWITCHER family, functioning as a high-efficiency step-down voltage regulator. It operates with an input voltage range of 4.5 V to 40 V and provides a fixed 12 V output at up to 500 mA. The device utilizes current-mode control for rapid transient response and incorporates internal frequency compensation to minimize external component count. Key features include a 52 kHz switching frequency, thermal shutdown protection, and a standard 8-pin PDIP package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated power switch enables compact design by eliminating external MOSFETs
• Current-mode control architecture ensures stable operation and fast load transient response
• Built-in thermal shutdown circuitry protects against overheating under fault conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation in industrial equipment
• Input voltage conditioning for embedded systems
• Battery-powered devices requiring efficient step-down conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'N' corresponds to the PDIP-8 package variant when sourcing. Confirm the '-12' designation indicates the fixed 12 V output version. Ensure compatibility with lead-free manufacturing processes if required by your assembly specifications. Cross-reference the manufacturer's latest datasheet for any pinout or electrical parameter updates.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 12 V output is required from a higher DC bus voltage. It is suitable for applications needing moderate current capability up to 500 mA without external pass transistors. Consider the operating temperature range and packaging constraints relative to your PCB layout requirements.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2671 series of SIMPLE SWITCHER regulators, designed for high-efficiency buck conversion. The series typically includes adjustable and fixed voltage variants. The LM2671N-12 specifically targets applications requiring a stable 12 V rail from inputs ranging up to 40 V, leveraging integrated power switching technology.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct pin-compatible alternatives within the same family may include other LM2671 variants with different output voltages or packages. Verify electrical parameters such as switching frequency and maximum output current before substituting.