LM2672MX-ADJ

Voltage Regulators - DC DC Switching Regulators Overview

The LM2672MX-ADJ is a SIMPLE SWITCHER® step-down voltage regulator manufactured by Texas Instruments. It utilizes LMDMOS technology to provide a fixed-frequency internal oscillator operating at 260 kHz. The device supports an input voltage range of 6.5 V to 40 V and delivers a maximum output current of 1 A. The adjustable output version allows for voltage settings between 1.21 V and 37 V with a maximum tolerance of ±1.5%. It is housed in an 8-SOIC surface-mount package and operates within a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates high-efficiency LMDMOS power switch for operation exceeding 90% efficiency
• Includes internal frequency compensation, soft-start, and frequency synchronization capabilities
• Features TTL-compatible shutdown pin for low-power standby mode control
• Provides built-in thermal shutdown and current limiting protection

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered systems requiring efficient step-down conversion
• Post-regulation stages for bus distribution networks
• Adapters and wall-wart power supplies
• General-purpose DC-to-DC buck converter designs

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix configuration against the manufacturer datasheet to ensure compatibility with required packaging options such as tape and reel or cut tape. Confirm that the component meets RoHS3 standards if environmental compliance is mandatory for the target assembly process. Check for any recent product change notifications regarding manufacturing site transitions or material updates.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a 1 A output current is sufficient and a 260 kHz switching frequency allows for smaller passive components compared to lower-frequency alternatives. Ensure the input voltage remains within the specified 6.5 V to 40 V window. Consider the SOIC-8 package thermal performance, as the device relies on PCB copper traces for heat dissipation due to its high efficiency.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2672 series of SIMPLE SWITCHER regulators, which are designed for low component count applications. The series includes fixed voltage variants (3.3 V, 5 V, 12 V) alongside the adjustable version. The MX suffix indicates the 8-SOIC surface-mount package variant, distinguishing it from through-hole PDIP options.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2672M-ADJ/NOPB: Identical functional specifications in an 8-SOIC tube package instead of tape and reel.