Texas Instruments LM22678QTJ
LM22678QTJ variants from Texas Instruments
LM22678QTJ Overview
What changes between part numbers, and what to check before you lock the BOM — DC DC Switching Regulators.
Key Features
- Footprint / package: TO-263Single package option across listed variants; still confirm reel vs tube suffix if you auto-insert.
- Lifecycle mix: ActiveConfirm lifecycle on the exact MPN, not just the base number prefix.
- 4 distinct suffix patternsExamples: 5.0, ADJ, 5.0/NOPB, ADJ/NOPB. Decode suffix meaning in the ordering notes under the variant table.
Target Applications
- DC DC Switching Regulators — design-in and field replacement
- BOM scrub where only the base prefix is known but suffix is TBD
- Second-source checks when the original MPN is constrained
Ordering Variants
Compare 4 LM22678QTJ part numbers by package, electrical parameters, lifecycle, and availability. Use RFQ for stock and lead-time confirmation.
| Part Number | Description | Package Type | Manufacturer | Lifecycle | RoHS | Availability | Action |
|---|---|---|---|---|---|---|---|
| LM22678QTJ-5.0 | Package: TO-263 | Mounting Type: Surface Mount | Output Voltage: 5V | Number of Outputs: 1 | Max Operating Temp: 125°C | Min Operating Temp: -40°C | TO-263 | Texas Instruments | Active | Compliant | In Stock | |
| LM22678QTJ-ADJ | Package: TO-263 | Mounting Type: Surface Mount | Output Voltage: 1.285(Min)V | Number of Outputs: 1 | Max Operating Temp: 125°C | Min Operating Temp: -40°C | TO-263 | Texas Instruments | Active | Compliant | In Stock | |
| LM22678QTJ-5.0/NOPB | 5V 5A Step Down DC-DC Controller, 4.5-42V In, TO-263 SMT | - | Texas Instruments | Active | Compliant | In Stock | |
| LM22678QTJ-ADJ/NOPB | Adj DC-DC Step Down 4.5-42V In, 5A Out, TO-263 SMT | - | Texas Instruments | Active | Compliant | In Stock |
Ordering Code Differences
How suffixes on LM22678QTJ map to package, grade, and reel options.
How to Choose the Right LM22678QTJ DC DC Switching Regulators
Match the footprint first
Packages here: TO-263. Open the land-pattern drawing before you substitute a different suffix.
Electrical headroom
Compare voltage and current columns in the variant table. For LM22678QTJ, a suffix with lower voltage or current rating will not survive the same circuit without recalculation.
Temp grade letter matters
Commercial (0–70 °C) and industrial (−40–85 °C+) suffixes look similar in the prefix — confirm ambient + self-heating, not just the first page of the datasheet.
Copy the full MPN
Do not BOM only "LM22678QTJ" — include the full suffix (e.g. 5.0, ADJ, 5.0/NOPB). RFQ with reel/tube preference and required date code.
Technical Specifications
Core parameters for LM22678QTJ product family
Identity
Variant Parameters
Source LM22678QTJ with Octatronics
Request stock confirmation, lead time, date code, and pricing for all 4 ordering variants from Texas Instruments. Our team supports active, EOL, and hard-to-find component sourcing.
- Original manufacturer parts with traceability options
- BOM upload and multi-line RFQ support
- Package, grade, and compliance verification
Frequently Asked Questions
Common technical questions about the LM22678QTJ product family.