LM22678TJE-ADJ/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM22678TJE-ADJ/NOPB is a Texas Instruments SIMPLE SWITCHER step-down voltage regulator featuring an adjustable output. It supports a maximum input voltage of 42 V and delivers up to 5 A of output current. The device operates with a fixed switching frequency of 0.6 MHz and utilizes a TO-263 (D2PAK) surface-mount package with seven pins. It functions within a temperature range of -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-current power switch for efficient step-down conversion
• Fixed-frequency pulse-width modulation control architecture
• Precision enable pin for precise power sequencing management
• Thermal shutdown protection to safeguard against overheating

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial point-of-load regulation
• Embedded system power distribution
• Telecommunications equipment power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'NOPB' confirms lead-free and RoHS compliance status. Confirm the 'TJE' designation matches the required TO-263 package variant. Ensure the 'ADJ' code aligns with the need for an adjustable output voltage rather than a fixed value. Cross-reference the manufacturer part number with official datasheets to validate authenticity before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a 5 A buck converter is required with an input voltage up to 42 V. The adjustable output allows flexibility for various load requirements. The TO-263 package provides robust thermal performance for high-current applications. Consider the 0.6 MHz switching frequency for balancing efficiency and external component size.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM22678 family of SIMPLE SWITCHER regulators, designed for high-efficiency DC-DC conversion. It serves as a non-synchronous buck converter solution, distinct from lower-current variants like the LM22674 or higher-voltage specialized models. The family emphasizes simplified design through integrated power switches and minimal external component counts.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM22678S-ADJ/NOPB offers identical electrical specifications in a TO-263-7 SMD package instead of the TJE through-hole variant.