LM22679TJ-ADJ/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM22679TJ-ADJ/NOPB is a Texas Instruments SIMPLE SWITCHER step-down voltage regulator featuring an integrated power switch capable of delivering up to 5 A output current. It operates with an input voltage range from 4.5 V to 42 V and supports adjustable output voltages. The device utilizes a fixed 500 kHz switching frequency to minimize external component size. It includes programmable soft-start, current limit, and thermal shutdown protection. Packaged in a TO-263-7 surface-mount format, it ensures efficient power conversion within a compact footprint.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a high-efficiency power switch for direct step-down regulation
• Includes programmable soft-start to control inrush current during startup
• Features built-in thermal shutdown and cycle-by-cycle current limiting
• Supports wide input voltage ranges suitable for industrial applications

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial point-of-load regulation
• Distributed power systems
• Battery-powered equipment
• Embedded controller supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the package suffix carefully; the specified model uses the standard TJ package. Confirm that the ADJ suffix matches the requirement for adjustable output voltage rather than fixed variants. Ensure the NOPB designation indicates lead-free compliance if required by the assembly process. Cross-reference the manufacturer datasheet for specific marking codes and reel specifications to avoid counterfeit components.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a 5 A output capability is required with a wide input voltage range up to 42 V. The adjustable output feature allows flexibility for various system rail requirements. Consider the TO-263 package for its thermal performance and ease of mounting compared to smaller packages. Evaluate the need for external compensation components based on the desired transient response and stability margins.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM22679 family of SIMPLE SWITCHER regulators, designed for high-current applications. It shares architectural similarities with lower-current variants like the LM22671 and LM22673 but offers superior current handling. The family emphasizes simplicity in design while providing robust protection features typical of Texas Instruments power management solutions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM22679TJE-ADJ/NOPB is a verified equivalent variant within the same series, differing primarily in the specific package sub-type or manufacturing lot details while maintaining identical electrical characteristics.