LM22676QTJE-ADJ/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM22676QTJE-ADJ/NOPB is an automotive-grade step-down switching regulator from the Texas Instruments SIMPLE SWITCHER family. It integrates a 42V-rated N-channel power switch to deliver up to 3A of output current. The device operates with an adjustable output voltage range starting from 1.258V, allowing for flexible system design. It supports a wide input voltage range from 4.5V to 42V and utilizes a fixed 500kHz switching frequency. The component is housed in a TO-263-EP-7 (PowerPAD) surface-mount package and is rated for operation over an extended junction temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-voltage power switch rated for 42V input applications
• Automotive qualification compliant with AEC-Q100 standards
• Built-in precision enable function for controlled startup sequencing
• Fixed internal switching frequency simplifies external component selection

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment and display power distribution
• On-board navigation and telematics unit regulation
• Industrial control systems requiring robust voltage conversion
• Distributed power architectures in commercial vehicles

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'Q' confirms automotive grade status against the official datasheet. Ensure the 'TJE' package designation matches the required thermal pad configuration for your PCB layout. Confirm that the 'ADJ' variant aligns with your target output voltage requirements rather than fixed voltage options.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing for automotive environments requiring high input voltage tolerance and significant current delivery. The adjustable output allows optimization for various logic levels. Consider the thermal performance of the PowerPAD package for heat dissipation needs in enclosed spaces compared to smaller packages.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM22676 series of SIMPLE SWITCHER regulators, which are designed for ease of use and compact footprint. The series includes both standard industrial and automotive grades, with variations in output voltage settings and package types to suit different power density requirements across consumer and industrial electronics.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM22676TJ-ADJ/NOPB: Industrial grade equivalent without automotive qualification.

Voltage Regulators - DC DC Switching Regulators FAQ

What is the minimum output voltage achievable with this regulator?

The minimum adjustable output voltage is 1.258V.

Does this device support synchronous rectification?

No, the LM22676 uses a non-synchronous buck topology with an integrated N-channel power switch.