LM2672N-12

Voltage Regulators - DC DC Switching Regulators Overview

The LM2672N-12 is a monolithic integrated DC-DC converter manufactured using LMDMOS technology. It functions as a high-efficiency 1A step-down voltage regulator within the SIMPLE SWITCHER family. The device operates with an input voltage range of 6.5V to 40V and provides a fixed 12V output. It utilizes a fixed internal oscillator operating at 260 kHz, which allows for the use of smaller external filter components compared to lower frequency regulators. The unit includes internal frequency compensation, soft-start, and thermal shutdown protection.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates all active functions for a complete step-down switching regulator solution
• Features a fixed 260 kHz internal oscillator for reduced component size
• Includes built-in soft-start and frequency synchronization capabilities
• Provides TTL-compatible shutdown functionality for low-power standby modes

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation in distributed power systems
• Pre-regulation for linear post-regulators
• Battery-powered equipment requiring efficient voltage conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the package type matches the required DIP-8 configuration for through-hole mounting. Confirm the suffix indicates the fixed 12V output variant rather than adjustable or other voltage options. Ensure the component meets the specific temperature grade requirements for the intended operational environment.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 12V output is required from a variable input source up to 40V. It is suitable for applications needing 1A load current with minimal external component count. Consider the 260 kHz switching frequency for trade-offs between filter size and electromagnetic interference.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2672 SIMPLE SWITCHER series, designed for high-efficiency power conversion. The 'N' suffix typically denotes the plastic dual in-line package (DIP), distinguishing it from surface-mount variants like the MX or LD. It serves as a robust alternative to linear regulators in applications where efficiency and heat dissipation are critical concerns.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Compatible substitutes include the LM2672MX-12 for surface-mount implementations and the LM2675 series for higher current requirements. Verify pin compatibility and thermal performance when transitioning between package types or current ratings.