LM22674QMRX-ADJ/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM22674QMRX-ADJ/NOPB is a SIMPLE SWITCHER step-down DC/DC switching regulator manufactured by Texas Instruments. It operates within an input voltage range of 4.5 V to 42 V and provides an adjustable output voltage with a maximum continuous output current of 500 mA. The device utilizes a fixed 500 kHz switching frequency and incorporates precision enable functionality for system power management. Designed for automotive applications, it holds AEC-Q100 qualification and functions reliably across an operating temperature range from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated precision enable control for accurate system startup sequencing and shutdown management
• Built-in overcurrent protection mechanisms to safeguard the regulator and load during fault conditions
• AEC-Q100 qualified construction ensuring reliability and durability in demanding automotive environments

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment and display power distribution systems
• On-board telematics and connectivity module power supplies
• Industrial control systems requiring robust buck conversion
• General embedded electronics utilizing wide input voltage ranges

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify that the specific suffix QMRX corresponds to the tape-and-reel packaging format required for automated surface-mount assembly processes. Confirm that the ADJ designation matches the design requirement for an adjustable output voltage rather than a fixed internal reference. Ensure the NOPB suffix indicates lead-free compliance consistent with RoHS standards for the target manufacturing region.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact buck converter is needed for automotive or industrial applications requiring up to 500 mA. The adjustable output allows flexibility in setting the rail voltage via external resistors. Consider the 42 V maximum input limit and the 500 kHz fixed frequency when designing the external inductor and capacitor network for optimal transient response and efficiency.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM22674 family of SIMPLE SWITCHER regulators, which are designed to simplify power supply design through integrated power switches and control circuitry. The family includes variants with different output currents and fixed voltage options. The LM22674 specifically targets low-current applications where space constraints and high efficiency are critical priorities for the overall system architecture.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM22674QMRE-ADJ/NOPB

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum input voltage supported by this regulator?

The LM22674QMRX-ADJ/NOPB supports a maximum input voltage of 42 V.

Is this component suitable for automotive applications?

Yes, the device is AEC-Q100 qualified and rated for an operating temperature range of -40°C to +125°C, making it suitable for automotive use.