LM22678QTJE-5.0/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM22678QTJE-5.0/NOPB is a Texas Instruments SIMPLE SWITCHER step-down voltage regulator featuring a fixed 5 V output and 5 A maximum current capability. It operates within a 4.5 V to 42 V input range using a non-synchronous buck topology with an integrated switch. The device utilizes a TO-263-7 (D2PAK) surface-mount package for thermal efficiency. It supports automotive applications via AEC-Q100 qualification, operating reliably between -40 °C and +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-current switching element designed for robust power delivery in compact form factors
• Automotive-grade reliability certified under AEC-Q100 standards for harsh environment operation
• Fixed-frequency pulse-width modulation control architecture ensuring stable regulation without external compensation

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive electronic systems requiring qualified power management components
• Industrial equipment utilizing wide-range DC bus voltages
• Embedded controllers needing efficient step-down conversion from higher supply rails

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'QTJ' confirms automotive grade AEC-Q100 status against the manufacturer datasheet. Ensure the 'E' variant matches the required TO-263-7 package dimensions. Confirm RoHS compliance details directly with the supplier documentation prior to integration into regulated assemblies.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing for automotive environments necessitating AEC-Q100 certification alongside high current demands. It serves as a direct upgrade over the LM2678 series by offering wider input voltage tolerance and improved thermal performance through the D2PAK package. Suitable for replacing legacy regulators where space constraints and heat dissipation are critical design parameters.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM22679/LM22678/LM22676 family of SIMPLE SWITCHER regulators. While sharing similar control logic, it differs from the LM22679 by its specific current rating and from the LM2678 by its automotive qualification and input voltage range. The TO-263-7 package provides superior thermal conductivity compared to standard SOP packages used in lower-power variants.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM22679QTJE-5.0/NOPB offers identical pinout and functionality with potentially different thermal characteristics due to internal die variations. LM22676QTJE-5.0/NOPB provides similar features but with a reduced 3 A output current limit. Verify thermal requirements before substituting with lower-rated current devices.