LM22671MR-ADJ/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM22671MR-ADJ/NOPB is a SIMPLE SWITCHER® step-down voltage regulator manufactured by Texas Instruments. It integrates a 0.5A power switch and operates from an input voltage range of 4.5V to 42V. The device features an adjustable output voltage with a maximum output current of 500mA. It supports switching frequencies up to 600kHz, enabling the use of small external components. The regulator includes built-in thermal shutdown and current limit protection. It is housed in an 8-pin SO-PowerPAD package suitable for surface-mount applications.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a 0.5A power switch for compact design
• Supports wide input voltage range from 4.5V to 42V
• Features adjustable switching frequency up to 600kHz
• Includes thermal shutdown and current limit protection

Voltage Regulators - DC DC Switching Regulators Applications

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

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the exact part number suffix against official Texas Instruments documentation to ensure correct packaging and revision status. Confirm that the ADJ variant matches the required adjustable output configuration rather than fixed voltage options. Check RoHS compliance markings as specified in the latest datasheet. Ensure compatibility with the intended PCB footprint for the SO-PowerPAD-8 package before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact, high-efficiency buck converter is needed for inputs up to 42V. The adjustable frequency feature allows optimization for size versus efficiency trade-offs. Consider the 500mA output limit relative to load requirements. Compare with other LM2267x family members if higher current or different pinouts are required. Verify thermal performance under expected ambient conditions due to the integrated power switch.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2267x SIMPLE SWITCHER® family, which offers integrated power switches to reduce external component count. The LM22671 specifically targets lower current applications compared to the LM22674 or LM22676 variants. The 'ADJ' designation indicates an adjustable output voltage, while 'NOPB' signifies lead-free and RoHS-compliant construction. It is designed for general-purpose DC-DC conversion tasks.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM22671MRX-ADJ/NOPB is a tape-and-reel version of the same electrical specification. LM22674MR-ADJ/NOPB offers similar functionality but may have different thermal characteristics or availability. Verify pinout compatibility and thermal resistance values when substituting.