LM22670QMRX-5.0/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM22670QMRX-5.0/NOPB is an automotive-grade, monolithic integrated circuit from the SIMPLE SWITCHER family, functioning as a step-down switching voltage regulator. It integrates a 3A current capable switch and operates within an input voltage range of 4.5V to 42V. The device provides a fixed 5V output with a maximum load current of 3A. Key electrical parameters include a nominal switching frequency of 500kHz, an operating temperature range from -40°C to +125°C, and AEC-Q100 qualification for automotive applications.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a high-current internal power switch rated for 3A continuous load.
• Features frequency synchronization capability to allow multiple regulators to operate at the same clock frequency.
• Includes programmable soft-start 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

• Automotive point-of-load (PoL) regulation
• Distributed power systems in vehicles
• Battery-powered automotive electronics

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify that the specific part number suffix matches the required package type and tape-and-reel configuration. Confirm AEC-Q100 qualification status if automotive reliability standards are mandatory for the application. Ensure the fixed 5.0V output variant aligns with system voltage requirements before ordering.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a robust, high-current buck converter is needed for automotive environments. It is suitable for designs requiring a wide input voltage range up to 42V. Consider the TO-263 or SOIC PowerPAD packages depending on thermal management needs and board space constraints relative to other members of the LM2267x family.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2267x SIMPLE SWITCHER series, which offers a complete solution for DC/DC conversion. The 'Q' designation indicates automotive grade qualification under AEC-Q100 standards. The '5.0' suffix specifies the fixed 5V output version, distinguishing it from adjustable or other fixed voltage variants within the same product line.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM22670QMRX-ADJ/NOPB: Adjustable output variant with identical pinout and specifications.

Voltage Regulators - DC DC Switching Regulators FAQ

Is the LM22670QMRX-5.0/NOPB qualified for automotive use?

Yes, the 'Q' prefix indicates that this component is AEC-Q100 qualified for automotive applications.

Can the switching frequency be synchronized?

Yes, the device includes a SYNC pin that allows the internal oscillator to be synchronized to an external clock signal.