LM3940ISX-3.3/NOPBAlternatives & Equivalent Parts
About LM3940ISX-3.3/NOPB
LM3940ISX-3.3/NOPB is a Integrated Circuit component manufactured by Texas Instruments. It comes in a Other package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
Specification Comparison
| Parameter | LM3940ISX-3.3/NOPBSource | LM3940IS-3.3 | LM3940IS-3.3/NOPB | LM3940ISX-3.3 |
|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package Type | Other | Other | TO-XXX (Inc. DPAK) | Other |
| Pin Count | 4 | 4 | 4 | 4 |
| Temperature Range | -40.0°C ~ 125.0°C | -40.0°C ~ 125.0°C | -40.0°C ~ 125.0°C | -40.0°C ~ 125.0°C |
| Price | $0.9750 | $1.4225 | $1.4225 | $0.9750 |
| Electrical Parameters | ||||
| Pbfree Code | Yes | Yes | Yes | Yes |
| YTEOL | 15 | 0 | 15 | 0 |
| Adjustability | FIXED | FIXED | FIXED | FIXED |
| Dropout Voltage1-Max | 1 V | 1 V | 1 V | 1 V |
| Dropout Voltage1-Nom | 0.31 V | 0.31 V | 0.31 V | 0.31 V |
| Input Voltage Absolute-Max | 7.5 V | 7.5 V | 7.5 V | 7.5 V |
| Input Voltage-Max | 5.5 V | 5.5 V | 5.5 V | 5.5 V |
| Input Voltage-Min | 4.5 V | 4.5 V | 4.5 V | 4.5 V |
| JESD-30 Code | R-PSSO-G3 | R-PSSO-G3 | R-PSSO-G3 | R-PSSO-G3 |
| JESD-609 Code | e3 | e0 | e3 | e0 |
| Line Regulation-Max | 0.04% | 0.04% | 0.04% | 0.04% |
| Load Regulation-Max | 0.08% | 0.08% | 0.08% | 0.08% |
| Number of Functions | 1 | 1 | 1 | 1 |
| Number of Outputs | 1 | 1 | 1 | 1 |
| Operating Temperature TJ-Max | 125 °C | 125 °C | 125 °C | 125 °C |
| Operating Temperature TJ-Min | -40 °C | -40 °C | -40 °C | -40 °C |
| Output Current1-Max | 1 A | 1 A | 1 A | 1 A |
| Output Voltage1-Max | 3.47 V | 3.47 V | 3.47 V | 3.47 V |
| Output Voltage1-Min | 3.13 V | 3.13 V | 3.13 V | 3.13 V |
| Output Voltage1-Nom | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Equivalence Code | SMSIP3H,.55TB | SMSIP3H,.55TB | SMSIP3H,.55TB | SMSIP3H,.55TB |
| Package Shape | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR |
| Package Style | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE |
| Packing Method | TR | TUBE | TUBE | TR |
| Peak Reflow Temperature (Cel) | 245 | 235 | 245 | 235 |
| Qualification Status | Not Qualified | Not Qualified | Not Qualified | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES | YES | YES | YES |
| Technology | BIPOLAR | BIPOLAR | BIPOLAR | BIPOLAR |
| Terminal Finish | Matte Tin (Sn) | Tin/Lead (Sn/Pb) | Matte Tin (Sn) | Tin/Lead (Sn/Pb) |
| Terminal Form | GULL WING | GULL WING | GULL WING | GULL WING |
| Terminal Pitch | 2.54 mm | 2.54 mm | 2.54 mm | 2.54 mm |
| Terminal Position | SINGLE | SINGLE | SINGLE | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | 30 | NOT SPECIFIED | 30 | NOT SPECIFIED |
| Voltage Tolerance-Max | 5.2% | 5.2% | 5.2% | 5.2% |
| ## LM3940ISX-3.3/NOPB Alternates Showing results | Image | — | — | — |
| Date Of Intro | — | 1995-01-01 | — | 1995-01-01 |
| ## LM3940IS-3.3 Alternates Showing results | — | Image | — | — |
| Reach Compliance Code | — | — | Not Compliant | — |
| ## LM3940IS-3.3/NOPB Alternates Showing results | — | — | Image | — |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Quick Links
Regulator, 3.3V, 1V Dropout, BIPolar, PSSO3
Regulator, 3.3V, 1V Dropout, BIPolar, PSSO3
Why Look for Alternatives?
Finding alternatives for LM3940ISX-3.3/NOPB 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 LM3940ISX-3.3/NOPB 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 LM3940ISX-3.3/NOPBFAQ
What is equivalent to LM3940ISX-3.3/NOPB?
Known equivalents for LM3940ISX-3.3/NOPB include LM3940IS-3.3, LM3940IS-3.3/NOPB, LM3940ISX-3.3. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of LM3940ISX-3.3/NOPB?
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 LM3940ISX-3.3/NOPB 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.