LM2671M-ADJ/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2671M-ADJ/NOPB is a SIMPLE SWITCHER power converter featuring a high-efficiency 500mA step-down voltage regulator. It operates with an input voltage range of 6.5V to 40V and provides an adjustable output voltage from 1.21V to 37V. The device integrates a 1.2A switch and operates at a fixed switching frequency of 260kHz. It utilizes an 8-SOIC surface-mount package and supports a junction temperature range from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a 1.2A power switch for efficient step-down conversion
• Fixed 260kHz switching frequency enables compact external component sizing
• Includes internal frequency compensation for simplified design
• Supports shutdown mode to minimize quiescent current consumption

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Battery-powered equipment requiring efficient voltage stepping
• General-purpose DC/DC conversion in industrial control units

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix NOPB indicates lead-free/RoHS compliance as per Texas Instruments standards. Confirm the SOIC-8 package dimensions match your PCB footprint requirements. Ensure the adjustable output configuration aligns with your feedback resistor network design. Check for any specific handling precautions related to the surface-mount thermal pad.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a 500mA output current is sufficient for the load. The adjustable output allows flexibility for various voltage rails within the 1.21V to 37V range. Consider the 260kHz frequency trade-off between component size and efficiency. Verify that the 40V maximum input voltage exceeds your system's peak supply levels.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2671 series of SIMPLE SWITCHER converters, designed for high-efficiency buck applications. It is distinct from higher-current variants like the LM2673 or lower-frequency models. The M suffix denotes the SOIC-8 surface-mount package, while ADJ specifies the adjustable output version.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The LM2671M-ADJ is listed as obsolete. Potential replacements include the LM2671M-ADJ/NOPB if available, or newer iterations within the LM267x family. Verify pin compatibility and electrical specifications before substituting with other manufacturers' buck regulators.