LM22670QTJE-ADJ/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM22670QTJE-ADJ/NOPB is a SIMPLE SWITCHER® step-down voltage regulator manufactured by Texas Instruments. It integrates a 3 A switch and operates from an input voltage range of 4.5 V to 42 V. The device features an adjustable output voltage, fixed internal switching frequency of 500 kHz, and supports a TO-263-7 (PowerPAD™) package for efficient thermal dissipation. It includes comprehensive protection features such as cycle-by-cycle current limiting, thermal shutdown, and soft-start. Qualified under AEC-Q100 standards, it functions reliably within an operating temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a high-efficiency 3 A power switch with a fixed 500 kHz switching frequency to minimize external component size.
• Provides adjustable output voltage capability with integrated cycle-by-cycle current limiting and thermal shutdown protection.
• Features a robust TO-263-7 PowerPAD package designed for superior thermal performance in surface-mount applications.

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial point-of-load regulation
• Automotive electronics systems
• Distributed power architectures

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'ADJ' confirms the adjustable output variant rather than a fixed voltage option. Ensure the 'Q1' designation or AEC-Q100 qualification aligns with automotive reliability requirements if applicable. Confirm the TO-263-7 package matches your PCB footprint and thermal management strategy. Cross-reference the manufacturer part number against official datasheets to validate pinout compatibility.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when an input voltage up to 42 V and continuous output current of 3 A are required. The adjustable output setting allows flexibility for various load voltages. Consider the TO-263-7 package for its thermal advantages over smaller packages. Evaluate the 500 kHz fixed frequency against EMI constraints and inductor size requirements compared to variable frequency alternatives.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM22670 series of SIMPLE SWITCHER regulators, which are known for integrating high-current switches into compact packages. The series targets applications requiring high efficiency and minimal external components. The TO-263-7 package variant specifically addresses thermal challenges in higher current designs while maintaining surface-mount convenience.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include other LM22670 variants with different output configurations or packages, such as LM22670TJ-ADJ/NOPB. Verify electrical parameters and pinout compatibility before substitution. Alternative families may require circuit redesign due to differences in switching frequency or control architecture.

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum input voltage supported by the LM22670QTJE-ADJ/NOPB?

The device supports a maximum input voltage of 42 V.

Does this regulator support adjustable output voltage?

Yes, the ADJ suffix indicates that the output voltage is adjustable via external resistors.

Is the LM22670QTJE-ADJ/NOPB qualified for automotive applications?

Yes, it is qualified according to AEC-Q100 standards for automotive use.