Texas Instruments LM2576T
LM2576T variants from Texas Instruments
LM2576T Overview
What changes between part numbers, and what to check before you lock the BOM — DC DC Switching Regulators.
LM2576T is a Texas Instruments order-code family — not a single orderable MPN. This page lists 12 variants that share the same core device but differ in suffix fields (package, grade, reel/tube, electrical bin, etc.). Pick the exact full part number; substituting within the family without checking the datasheet often causes assembly or spec mismatches.
Package: TO-220-5 | Max Supply Voltage: 40V | Min Supply Voltage: 4V | Output Voltage: 5V | Output Current: 3A | Max Output Current: 5.8A | Max Input Voltage: 40V | Number of Channels: 1 Other listed variants describe: 12V 3A Step-Down Regulator, 40V In, TO-220; 7.5A SWITCHING REGULATOR, 63kHz SWITCHING FREQ-MAX, PSFM5, TO-220, 5 PIN.
Across listed variants, watch these parameters: packages: TO-220-5.
Suffix examples in this family: 5.0/NOPB, 12, 12/NOPB, 15, 3.3, 3.3/LF03, 3.3/NOPB, 5.0. The characters after the base number usually encode package, temperature, or performance grade — compare the variant table column-by-column rather than assuming pin-compatible drops-in.
Example MPNs: LM2576T-5.0/NOPB, LM2576T-12, LM2576T-12/NOPB, LM2576T-15, LM2576T-3.3, LM2576T-3.3/LF03.
Key Features
- Footprint / package: TO-220-5Single 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.
- 12 distinct suffix patternsExamples: 5.0/NOPB, 12, 12/NOPB, 15, 3.3 (+7 more). 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 12 LM2576T 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 |
|---|---|---|---|---|---|---|---|
| LM2576T-5.0/NOPB | Package: TO-220-5 | Max Supply Voltage: 40V | Min Supply Voltage: 4V | Output Voltage: 5V | Output Current: 3A | Max Output Current: 5.8A | Max Input Voltage: 40V | Number of Channels: 1 | TO-220-5 | Texas Instruments | Active | Compliant | In Stock | |
| LM2576T-12 | 12V 3A Step-Down Regulator, 40V In, TO-220 | - | Texas Instruments | Active | Compliant | In Stock | |
| LM2576T-12/NOPB | 12V 3A Step-Down Regulator, 40V In, TO-220 | - | Texas Instruments | Active | Compliant | In Stock | |
| LM2576T-15 | 7.5A SWITCHING REGULATOR, 63kHz SWITCHING FREQ-MAX, PSFM5, TO-220, 5 PIN | - | Texas Instruments | Active | Compliant | In Stock | |
| LM2576T-3.3 | 7.5A SWITCHING REGULATOR, 63kHz SWITCHING FREQ-MAX, PSFM5, TO-220, 5 PIN | - | Texas Instruments | Active | Compliant | In Stock | |
| LM2576T-3.3/LF03 | SIMPLE SWITCHER® 40V, 3A Low Component Count Step-Down Regulator 5-TO-220 | - | Texas Instruments | Active | Compliant | In Stock | |
| LM2576T-3.3/NOPB | 3.3V 3A Step-Down Regulator, 40V In, TO-220, DC-DC Controller | - | Texas Instruments | Active | Compliant | In Stock | |
| LM2576T-5.0 | 5V 3A Step-Down Regulator, 40V In, 52kHz, TO-220 | - | Texas Instruments | Active | Compliant | In Stock | |
| LM2576T-5.0/LF02 | SIMPLE SWITCHER® 40V, 3A Low Component Count Step-Down Regulator 5-TO-220 | - | Texas Instruments | Active | Compliant | In Stock | |
| LM2576T-5.0/LF03 | SIMPLE SWITCHER® 40V, 3A Low Component Count Step-Down Regulator 5-TO-220 | - | Texas Instruments | Active | Compliant | In Stock | |
| LM2576T-ADJ/LF02 | SIMPLE SWITCHER® 40V, 3A Low Component Count Step-Down Regulator 5-TO-220 | - | Texas Instruments | Active | Compliant | In Stock | |
| LM2576T-ADJ/NOPB | 3A Adj Step-Down Regulator, 40V In, TO-220, -40 to 125C | - | Texas Instruments | Active | Compliant | In Stock |
Ordering Code Differences
How suffixes on LM2576T map to package, grade, and reel options.
LM2576T uses a shared prefix; characters after the prefix encode orderable options. Two lines with the same prefix are not drop-in replacements unless the differing columns match your need.
Suffixes seen here: 5.0/NOPB, 12, 12/NOPB, 15, 3.3, 3.3/LF03, 3.3/NOPB, 5.0, 5.0/LF02, 5.0/LF03 (+2 more).
Full MPN examples: LM2576T-5.0/NOPB, LM2576T-12, LM2576T-12/NOPB, LM2576T-15, LM2576T-3.3.
Tip: photograph or copy the reel label — reel diameter, QTY per reel, and moisture sensitivity level (MSL) are often suffix-driven and won't show in the schematic.
How to Choose the Right LM2576T DC DC Switching Regulators
Match the footprint first
Packages here: TO-220-5. Open the land-pattern drawing before you substitute a different suffix.
Electrical headroom
Compare voltage and current columns in the variant table. For LM2576T, 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 "LM2576T" — include the full suffix (e.g. 5.0/NOPB, 12, 12/NOPB). RFQ with reel/tube preference and required date code.
Technical Specifications
Core parameters for LM2576T product family
Identity
Variant Parameters
Source LM2576T with Octatronics
Request stock confirmation, lead time, date code, and pricing for all 12 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 LM2576T product family.
Related Base Numbers
Related Series
Explore product families linked to this base-number page.