LM2991T/LF03Alternatives & Equivalent Parts
About LM2991T/LF03
LM2991T/LF03 is a Integrated Circuit component manufactured by Texas Instruments. It comes in a Transistor Outline, Vertical package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
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Specification Comparison
| Parameter | LM2991T/LF03Source | LM2991T | 1792148 |
|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Phoenix Contact |
| Package Type | Transistor Outline, Vertical | Transistor Outline, Vertical | Other |
| Pin Count | 3 | 3 | 6 |
| Temperature Range | — | — | — |
| Price | $2.5935 | $2.5935 | $13.4172 |
| Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | OBSOLETE | OBSOLETE |
| Electrical Parameters | |||
| Pbfree Code | Yes | Yes | Yes |
| YTEOL | 15 | 0 | 0 |
| Adjustability | ADJUSTABLE | ADJUSTABLE | — |
| Dropout Voltage1-Max | 1 V | 1 V | — |
| Dropout Voltage1-Nom | 0.6 V | 0.6 V | — |
| Input Voltage-Max | 0.3 V | 0.3 V | — |
| Input Voltage-Min | 26 V | 26 V | — |
| JESD-30 Code | R-XZFM-T5 | R-PSFM-T5 | — |
| JESD-609 Code | e3 | e0 | — |
| Line Regulation-Max (%/V) | 0.04 | 0.04 | — |
| Load Regulation-Max(%) | 0.4% | 0.4% | — |
| Number of Functions | 1 | 1 | — |
| Number of Outputs | 1 | 1 | — |
| Operating Temperature TJ-Max | 125 °C | 125 °C | — |
| Operating Temperature TJ-Min | -40 °C | -40 °C | — |
| Output Current1-Max | 1 A | 1 A | — |
| Output Voltage1-Max | 24 V | 24 V | — |
| Output Voltage1-Min | 3 V | 3 V | — |
| Package Body Material | UNSPECIFIED | PLASTIC/EPOXY | — |
| Package Equivalence Code | ZIP5,.15,.17,67TB | SIP5,.1,67TB | — |
| Package Shape | RECTANGULAR | RECTANGULAR | — |
| Package Style | FLANGE MOUNT | FLANGE MOUNT | — |
| Packing Method | TUBE | TUBE | — |
| Qualification Status | Not Qualified | Not Qualified | — |
| Regulator Type | ADJUSTABLE NEGATIVE SINGLE OUTPUT LDO REGULATOR | ADJUSTABLE NEGATIVE SINGLE OUTPUT LDO REGULATOR | — |
| Surface Mount | NO | NO | — |
| Technology | BIPOLAR | BIPOLAR | — |
| Terminal Finish | Matte Tin (Sn) | TIN LEAD | — |
| Terminal Form | THROUGH-HOLE | THROUGH-HOLE | — |
| Terminal Pitch | 1.702 mm | 1.7 mm | — |
| Terminal Position | ZIG-ZAG | SINGLE | — |
| Voltage Tolerance-Max | 5% | 5% | — |
| ## LM2991T/LF03 Alternates Showing results | Image | — | — |
| Date Of Intro | — | 1994-06-01 | — |
| Additional Feature | — | — | STANDARD: UL 94V-0, POLYAMIDE |
| Fastening Method | — | — | PUSH-IN |
| Mounting Type | — | — | BOARD |
| Number of Decks | — | — | 1 |
| Number of Rows | — | — | 1 |
| Number of Ways | — | — | 6 |
| Rated Current | — | — | 41 A |
| Rated Voltage | — | — | 1000 V |
| Safety Approval | — | — | CUL; EAC; UL; VDE |
| Terminal and Terminal Block Type | — | — | BARRIER STRIP TERMINAL BLOCK |
| Wire Cross Section | — | — | 6 mm2 |
| Wire Gauge | — | — | 10 AWG |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
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Get one quote covering all 2 alternatives for LM2991T/LF03 — response within 24 hours.
Quick Links
Why Look for Alternatives?
Finding alternatives for LM2991T/LF03 is essential for supply chain resilience. Component shortages, long lead times, and end-of-life notices can disrupt production schedules. Having verified alternative parts ensures your designs remain manufacturable.
When evaluating LM2991T/LF03 replacements, consider key parameters such as package compatibility, electrical specifications, and operating temperature range. Our engineering team can help verify pin-to-pin compatibility for your specific application.
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FAQ
What is equivalent to LM2991T/LF03?
Known equivalents for LM2991T/LF03 include LM2991T, 1792148. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of LM2991T/LF03?
In many cases, yes. Cross-manufacturer alternatives exist for most standard components. However, always verify pin compatibility, electrical specs, and package dimensions before substituting in production.
How do I verify LM2991T/LF03 alternatives?
Compare the datasheet specifications including pinout, voltage ratings, timing parameters, and package dimensions. FindMyChip's engineering team can help with compatibility verification — submit an RFQ to get started.