LM22678QTJE-ADJ/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM22678QTJE-ADJ/NOPB is a non-synchronous buck switching regulator from Texas Instruments, designed for high-efficiency step-down conversion. It features an integrated 7A power switch and operates with a fixed switching frequency of 2.95MHz. The device supports an input voltage range of 4.5V to 42V and provides an adjustable output voltage between 1.23V and 37V. Packaged in a TO-263-7 (D2PAK) surface-mount format, it is qualified under AEC-Q100 standards for automotive applications. The component ensures reliable performance across an operating temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a 7A N-channel MOSFET power switch for robust current handling without external components
• Utilizes a fixed 2.95MHz switching frequency to minimize passive component size and reduce electromagnetic interference
• Features internal compensation and thermal shutdown protection for stable operation and enhanced reliability
• Supports adjustable output voltages via external feedback resistors within a wide input voltage window

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment and body control module power distribution
• Industrial PLC and sensor node DC-DC conversion
• Communication equipment backplane voltage regulation
• Embedded system point-of-load power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'QTJE' against the manufacturer's official datasheet to confirm package type and qualification status. Ensure that the ordering code matches the exact pinout and thermal pad configuration required by your PCB layout. Cross-reference the RoHS compliance status with the latest product release notes to guarantee adherence to environmental regulations. Confirm availability through authorized distributors to avoid counterfeit components.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a single-chip solution is required for currents up to 7A with minimal external circuitry. The fixed 2.95MHz frequency allows for smaller inductors compared to lower-frequency alternatives. Consider the TO-263-7 package for its superior thermal dissipation capabilities in space-constrained designs. This part is suitable for applications requiring AEC-Q100 qualification and does not need external loop compensation, simplifying the design process.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the SIMPLE SWITCHER family of regulators, known for ease of use and compact design. It serves as a high-current alternative to lower-power buck converters like the LM22671 series. The non-synchronous architecture distinguishes it from synchronous counterparts, offering a balance between cost, efficiency, and complexity. It complements the broader portfolio of Texas Instruments power management solutions for industrial and automotive markets.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.