LM22672MR-ADJ/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM22672MR-ADJ/NOPB is a SIMPLE SWITCHER step-down voltage regulator from Texas Instruments. It integrates a 1A power switch and operates with an input voltage range of 4V to 40V. The device provides an adjustable output voltage between 1.21V and 37V. Key electrical parameters include a switching frequency of 500kHz, a maximum output current of 1A, and a typical quiescent current of 3.4mA. It functions within a junction temperature range of -40°C to +125°C and utilizes an 8-SO PowerPAD package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a high-efficiency synchronous buck converter topology for compact design
• Features adjustable switching frequency to optimize external component size
• Includes internal soft-start circuitry to limit inrush current during startup
• Provides comprehensive protection against thermal overload and cycle-by-cycle current limiting

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Industrial control power supplies
• Telecommunications equipment backend power distribution
• Battery-powered devices requiring efficient step-down conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'NOPB' confirms lead-free and RoHS compliance status as per the manufacturer's latest documentation. Ensure the 'MR' package designation matches the required 8-SO PowerPAD footprint for PCB layout compatibility. Cross-reference the datasheet revision date to confirm pinout and electrical characteristics have not changed in recent updates before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a single-output, non-isolated DC-DC solution is required for currents up to 1A. The adjustable frequency feature allows designers to trade off between efficiency and passive component size. Consider the thermal performance of the PowerPAD package for high ambient temperature environments. Verify that the input voltage range covers the minimum and maximum supply rails of the target application system.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM267x family of SIMPLE SWITCHER regulators, which are designed for ease of use and high efficiency. The LM22672 variant specifically targets applications requiring moderate current levels with flexible output voltage settings. It serves as a drop-in replacement for older generation discrete solutions or fixed-frequency regulators in space-constrained designs.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2672MX-ADJ/NOPB offers similar functionality but operates at a different switching frequency (260kHz) and uses an 8-SOIC package instead of the PowerPAD form factor. Designers must account for thermal dissipation differences and potential layout changes when substituting these parts.