LM22676QTJ-5.0/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM22676QTJ-5.0/NOPB is a SIMPLE SWITCHER® step-down voltage regulator from Texas Instruments, designed for high-efficiency power conversion. It integrates a 42V-rated N-channel power switch and delivers a fixed 5V output at up to 3A. Operating with a standard 500kHz switching frequency, it supports input voltages between 4.5V and 42V. The device features AEC-Q100 qualification for automotive reliability and operates within a junction temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a 42V N-channel power switch for robust operation in high-voltage environments
• Includes precision enable threshold for accurate power sequencing and system control
• Features adjustable soft-start to limit inrush current during startup
• Provides comprehensive protection against overcurrent, thermal overload, and undervoltage lockout

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment and display systems requiring AEC-Q100 compliance
• Industrial point-of-load regulation for distributed power architectures
• Embedded controller power supplies in computing equipment
• General-purpose 5V distribution networks from higher voltage rails

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix QTJ corresponds to the TO-263-7 (DPAK) package variant when sourcing. Confirm that the NOPB designation ensures lead-free and RoHS compliance as per manufacturer specifications. Cross-reference the full part number with official Texas Instruments documentation to ensure compatibility with your design's thermal and electrical requirements before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5V output is required from an input rail ranging up to 42V. The integrated switch eliminates the need for external MOSFETs, simplifying the bill of materials. Consider the TO-263-7 package for its balance of thermal performance and surface-mount convenience. Ensure the application demands the 500kHz frequency trade-off between component size and efficiency.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM22676 family of SIMPLE SWITCHER regulators, which are known for ease of use and compact design. The LM22676 series offers various output voltage options and packaging styles, including SO-PowerPAD and DPAK variants. The QTJ suffix specifically identifies the TO-263-7 package configuration within this broader product line.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM22676TJ-5.0/NOPB: Identical functional specification and output voltage housed in the same TO-263-7 package. Verify pinout and thermal pad configurations match exactly. Other LM22676 variants with different packages or output voltages require schematic and layout modifications.