LM22673TJE-ADJ/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM22673TJE-ADJ/NOPB is a 3A SIMPLE SWITCHER step-down voltage regulator manufactured by Texas Instruments. It operates with an input voltage range of 4.5V to 42V and provides an adjustable output voltage. The device features a fixed switching frequency of 500kHz, adjustable soft-start, and current limit protection. It is housed in a TO-263-7 (D2PAK) package and supports an operating temperature range from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated 3A power switch for high-current step-down conversion
• Adjustable soft-start limits inrush current during startup
• Built-in current limit protects against short circuits and overloads
• Fixed 500kHz switching frequency enables compact passive component selection

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial control systems requiring robust 3A regulation
• Automotive electronics compliant with AEC-Q100 standards
• Communication equipment power distribution networks
• Embedded systems with wide input voltage variations

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer designation as Texas Instruments, as National Semiconductor was acquired. Confirm the suffix NOPB indicates lead-free and RoHS compliance. Ensure the ADJ variant matches the required adjustable output configuration rather than fixed voltage options. Check for AEC-Q100 qualification if automotive grade reliability is mandatory for the specific application environment.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a 3A output current is required with an input voltage up to 42V. The adjustable output allows flexibility for various target voltages. Consider the TO-263-7 package for its thermal performance compared to smaller packages. Evaluate the 500kHz frequency against EMI requirements and inductor size constraints. Ensure the load transient response meets system stability needs without external compensation.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM22673 family of SIMPLE SWITCHER regulators. It shares architectural similarities with the LM2673 but offers improved efficiency and integrated features. The TJE suffix denotes the TO-263-7 surface-mount package. The ADJ/NOPB designation specifies the adjustable output version with lead-free packaging.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

• LM22673TJE-ADJ
• LM22673TJ-ADJ/NOPB