LM22674QMRE-ADJ/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM22674QMRE-ADJ/NOPB is a SIMPLE SWITCHER step-down DC/DC switching regulator manufactured by Texas Instruments. It operates with an input voltage range of 4.5 V to 42 V and provides an adjustable output voltage between 1.285 V and 37 V. The device delivers a maximum output current of 500 mA at a fixed switching frequency of 500 kHz. It features a typical quiescent current of 3.4 mA and supports operation within a junction temperature range of -40°C to +125°C. The component is housed in an 8-pin SO-PowerPAD package and holds AEC-Q100 qualification.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated precision enable function for accurate power sequencing and system control
• Built-in overcurrent protection mechanisms to safeguard against load faults
• AEC-Q100 qualified for automotive reliability standards

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems requiring regulated power rails
• Industrial control boards utilizing buck topology
• Embedded systems needing isolated or regulated low-voltage outputs from higher bus voltages

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix ADJ confirms adjustable output configuration rather than fixed voltage variants. Ensure the QMRE package designation matches the required SO-PowerPAD footprint. Confirm NOPB indicates lead-free and RoHS compliance status. Cross-reference the manufacturer part number with official Texas Instruments documentation to validate authenticity and revision level before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when an adjustable output voltage is required within the 1.285 V to 37 V range. It is suitable for applications demanding a 500 mA continuous load capability. Consider the 500 kHz switching frequency for balancing efficiency and external component size. Verify that the input voltage does not exceed the 42 V maximum limit under all operating conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM22674 series of SIMPLE SWITCHER regulators. It shares the same pinout and core architecture with other variants in the family, such as fixed-output versions like the LM22674QMRE-5.0/NOPB. The primary distinction lies in the feedback network configuration, allowing for user-defined output voltages in the ADJ variant compared to internal resistor dividers in fixed models.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include LM22674QMRE-5.0/NOPB if a fixed 5V output is acceptable. For adjustable requirements, verify compatibility with LM22674MRE-ADJ/NOPB. Ensure any replacement maintains the SO-PowerPAD-8 package and AEC-Q100 rating if automotive qualification is mandatory.