Texas Instruments LM3691TLX
LM3691TLX variants from Texas Instruments
LM3691TLX Overview
What changes between part numbers, and what to check before you lock the BOM — Microcontrollers.
Key Features
- Lifecycle mix: ActiveConfirm lifecycle on the exact MPN, not just the base number prefix.
- 3 distinct suffix patternsExamples: 1.2/NOPB, 1.8/NOPB, 3.3/NOPB. Decode suffix meaning in the ordering notes under the variant table.
Target Applications
- Microcontrollers — 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 3 LM3691TLX part numbers by package, electrical parameters, lifecycle, and availability. Use RFQ for stock and lead-time confirmation.
| Part Number | Description | Manufacturer | Lifecycle | RoHS | Availability | Action |
|---|---|---|---|---|---|---|
| LM3691TLX-1.2/NOPB | IC REG BUCK 1.2V 1A SYNC 6USMD | Texas Instruments | Active | Compliant | In Stock | |
| LM3691TLX-1.8/NOPB | High Accuracy, Miniature 1A, Step-Down DC-DC Converter for Portable Applications 6-DSBGA -30 to 85 | Texas Instruments | Active | Compliant | In Stock | |
| LM3691TLX-3.3/NOPB | High Accuracy, Miniature 1A, Step-Down DC-DC Converter for Portable Applications 6-DSBGA | Texas Instruments | Active | Compliant | In Stock |
Ordering Code Differences
How suffixes on LM3691TLX map to package, grade, and reel options.
How to Choose the Right LM3691TLX Microcontrollers
Match the footprint first
Pull the exact package drawing for your MPN — base-number swaps fail most often at the footprint, not the schematic.
Electrical headroom
Compare voltage and current columns in the variant table. For LM3691TLX, 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 "LM3691TLX" — include the full suffix (e.g. 1.2/NOPB, 1.8/NOPB, 3.3/NOPB). RFQ with reel/tube preference and required date code.
Technical Specifications
Core parameters for LM3691TLX product family
Identity
Variant Parameters
Source LM3691TLX with Octatronics
Request stock confirmation, lead time, date code, and pricing for all 3 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 LM3691TLX product family.