LM3671MFX-1.2Alternatives & Equivalent Parts
About LM3671MFX-1.2
LM3671MFX-1.2 is a Integrated Circuit component manufactured by Texas Instruments. It comes in a SOT23 (5-Pin) package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
Specification Comparison
| Parameter | LM3671MFX-1.2Source | LM3671MF-1.2 | LM3671MF-1.2/NOPB | LM3671MF-1.25/NOPB |
|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package Type | SOT23 (5-Pin) | Other | SOT23 (5-Pin) | SOT23 (5-Pin) |
| Pin Count | 5 | 5 | 5 | 5 |
| Temperature Range | -30.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C |
| Price | $0.4304 | $0.7001 | $0.7001 | $0.1806 |
| Electrical Parameters | ||||
| Pbfree Code | No | Yes | Yes | Yes |
| YTEOL | 0 | 0 | 15 | 15 |
| Additional Feature | PULSE FREQUENCY MODULATION TECHNIQUE IS ALSO POSSIBLE | PULSE FREQUENCY MODULATION TECHNIQUE IS ALSO POSSIBLE | PULSE FREQUENCY MODULATION TECHNIQUE IS ALSO POSSIBLE | PULSE FREQUENCY MODULATION TECHNIQUE IS ALSO POSSIBLE |
| Analog IC - Other Type | SWITCHING REGULATOR | SWITCHING REGULATOR | SWITCHING REGULATOR | SWITCHING REGULATOR |
| Control Mode | VOLTAGE-MODE | VOLTAGE-MODE | VOLTAGE-MODE | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION | PULSE WIDTH MODULATION | PULSE WIDTH MODULATION | PULSE WIDTH MODULATION |
| Input Voltage-Max | 5.5 V | 5.5 V | 5.5 V | 5.5 V |
| Input Voltage-Min | 2.7 V | 2.7 V | 2.7 V | 2.7 V |
| Input Voltage-Nom | 3.6 V | 3.6 V | 3.6 V | 3.6 V |
| JESD-30 Code | R-PDSO-G5 | R-PDSO-G5 | R-PDSO-G5 | R-PDSO-G5 |
| JESD-609 Code | e0 | e0 | e3 | e3 |
| Number of Functions | 1 | 1 | 1 | 1 |
| Output Current-Max | 1.15 A | 0.6 A | 0.6 A | 0.6 A |
| Output Voltage-Nom | 1.2 V | 1.2 V | 1.2 V | 1.25 V |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP5/6,.11,37 | TSOP5/6,.11,37 | TSOP5/6,.11,37 | TSOP5/6,.11,37 |
| Package Shape | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 | 260 | 260 | 260 |
| Qualification Status | Not Qualified | Not Qualified | Not Qualified | Not Qualified |
| Screening Level | TS 16949 | — | — | — |
| Surface Mount | YES | YES | YES | YES |
| Switcher Configuration | BUCK | BUCK | BUCK | BUCK |
| Switching Frequency-Max | 2600 kHz | 2600 kHz | 2600 kHz | 2600 kHz |
| Technology | BICMOS | — | — | — |
| Temperature Grade | OTHER | INDUSTRIAL | INDUSTRIAL | INDUSTRIAL |
| Terminal Finish | TIN LEAD | Tin/Lead (Sn/Pb) | Matte Tin (Sn) | Matte Tin (Sn) |
| Terminal Form | GULL WING | GULL WING | GULL WING | GULL WING |
| Terminal Pitch | 0.95 mm | 0.953 mm | 0.953 mm | 0.953 mm |
| Terminal Position | DUAL | DUAL | DUAL | DUAL |
| Number of Outputs | — | 1 | 1 | 1 |
| Output Voltage-Max | — | 3.3 V | 3.3 V | 3.3 V |
| Output Voltage-Min | — | 1.1 V | 1.1 V | 1.1 V |
| Time@Peak Reflow Temperature-Max (s) | — | NOT SPECIFIED | 30 | 30 |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Quick Links
Switching Regulator, Voltage-mode, 1.15A, 2600kHz Switching Freq-Max, PDSO5
Switching Regulator, Voltage-mode, 1.15A, 2600kHz Switching Freq-Max, PDSO5
Switching Regulator, Voltage-mode, 0.6A, 2600kHz Switching Freq-Max, PDSO5
Why Look for Alternatives?
Finding alternatives for LM3671MFX-1.2 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 LM3671MFX-1.2 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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Request Alternatives for LM3671MFX-1.2FAQ
What is equivalent to LM3671MFX-1.2?
Known equivalents for LM3671MFX-1.2 include LM3671MF-1.2, LM3671MF-1.2/NOPB, LM3671MF-1.25/NOPB. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of LM3671MFX-1.2?
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 LM3671MFX-1.2 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.