LM22676TJ-ADJ/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM22676TJ-ADJ/NOPB is a SIMPLE SWITCHER step-down voltage regulator from Texas Instruments, housed in a TO-263-EP-7 (PowerPAD) surface-mount package. It operates with an input voltage range of 4.5V to 42V and delivers up to 3A of output current. The device features an adjustable output voltage controlled by external resistors, a fixed switching frequency of 500kHz, and a typical quiescent current of 3.4mA. It supports operation across an extended junction temperature range from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-side switch capable of delivering 3A load current for efficient power conversion.
• Fixed internal switching frequency simplifies external component selection and minimizes size requirements.
• Precision enable pin allows for precise sequencing and system power management control.

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for industrial equipment
• Distributed power architectures in embedded systems
• Battery-powered applications requiring wide input voltage tolerance

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix NOPB indicates lead-free composition and RoHS compliance as per Texas Instruments standards. Confirm the TO-263-EP-7 package variant matches the thermal pad requirements of the target PCB layout. Ensure the ADJ designation aligns with the desired adjustable output configuration rather than a fixed voltage option.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a buck topology is required for inputs up to 42V with moderate current demands. The adjustable output feature provides flexibility for various rail voltages. Consider the thermal performance of the PowerPAD package for heat dissipation needs in compact designs without active cooling.

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 high efficiency. The series includes variants with fixed output voltages and different packaging options such as SO-PowerPAD-8. The LM22676TJ-ADJ/NOPB specifically utilizes the TO-263-EP-7 package for enhanced thermal handling compared to smaller footprints.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM22676TJ-5.0/NOPB offers a fixed 5V output in the same package. LM22676MR-ADJ/NOPB provides the same functionality in an SO-PowerPAD-8 package. Cross-reference datasheets for pinout compatibility and thermal characteristics before substitution.