Alternatives to Texas Instruments LM4040AIM3-2.5
Texas Instruments LM4040AIM3-2.5 and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 LM4040AIM3-2.5Texas Instruments | LM4040AIM3-2.5/NOPBTexas Instruments |  LM4040AIM3-2.5+TAnalog Devices Inc./Maxim Integrated | +4more | |
|---|---|---|---|---|
| FFF Compatibility | SOT-23-3 package with identical pin assignments (Pin 1 Cathode, Pin 2 Anode, Pin 3 Floating/NC).Identical SOT-23-3 physical package and footprint dimensions.Identical ±0.1% accuracy, 2.5V shunt reference output, 15mA max current, and -40°C to +85°C operating range. | SOT-23-3 package with identical pin assignments (Pin 1 Cathode, Pin 2 Anode, Pin 3 Floating/NC).Identical SOT-23-3 physical package and footprint dimensions.Meets or exceeds all performance specifications including ±0.1% tolerance, 15mA maximum output, and identical cathode current behavior. | ||
 AI Summary | LM4040AIM3-2.5 by Texas Instruments: Shunt Voltage Reference IC Fixed 2.5V V ±0.1% 15 mA SOT-23-3. | This is the direct RoHS-compliant replacement from the original manufacturer. It offers identical electrical specifications and physical parameters, serving as a seamless drop-in replacement.
| This is a direct, pin-compatible second-source alternative from Analog Devices with the same ±0.1% precision grade. It provides identical electrical performance and physical package compliance.
| |
| Lifecycle Status | Obsolete | Active | Active | |
| Market Availability | Discontinued | In stock | In stock | |
| REACH | REACH | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
| Description | Shunt Voltage Reference IC Fixed 2.5V V ±0.1% 15 mA SOT-23-3 | Shunt Voltage Reference IC Fixed 2.5V V ±0.1% 15 mA SOT-23-3 | Shunt Voltage Reference IC Fixed 2.5V V ±0.1% 15 mA SOT-23-3 | |
| Manufacturer | Texas Instruments | Texas Instruments | Analog Devices Inc./Maxim Integrated | |
| Type | Power Management (PMIC) | Power Management (PMIC) | Power Management (PMIC) | |
| Datasheet | Open | Open | Open | |
| Lead Time | 12 weeks | 9 weeks | 11 weeks | |
| Country of Origin | CN, MY, US | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8542.39.0090 | - | - | |
| Moisture Sensitivity Level | 1 (Unlimited) | - | - | |
| Tolerance | ±0.1% | - | - | |
| Output Type | Fixed | - | - | |
| Mounting Type | Surface Mount | - | - | |
| Package / Case | TO-236-3, SC-59, SOT-23-3 | - | - | |
| Reference Type | Shunt | - | - | |
| Current - Output | 15 mA | - | - | |
| Current - Cathode | 65 µA | - | - | |
| Noise - 10Hz to 10kHz | 35µVrms | - | - |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 LM4040BIM3-2.5Analog Devices | In stock | Obsolete | 4Alternatives availableSee Alternatives |
 LM4041DIM3-ADJTexas Instruments | In stock | Obsolete | 4Alternatives availableSee Alternatives |
 LM45CIM3Texas Instruments | In stock | Obsolete | 3Alternatives availableSee Alternatives |
| LM45CIM3/NOPBTexas Instruments | In stock | Obsolete | 4Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The Texas Instruments LM4040AIM3-2.5 is marked obsolete, so the manufacturer has discontinued it and any remaining supply is limited to distributor stock. The qualified second sources on this page are active parts you can design in today.
The closest qualified second sources for the Texas Instruments LM4040AIM3-2.5 are the LM4040AIM3-2.5/NOPB (Texas Instruments) and the LM4040AIM3-2.5+T (Analog Devices Inc./Maxim Integrated), out of 6 matched alternatives in total. Each is compared against the original on fit, form and function in the table above.
Not always. The alternatives to the LM4040AIM3-2.5 are matched on function but can differ in package, pinout or a key parameter, so review the fit/form/function notes in the table and the datasheet before designing one in.
The LM4040AIM3-2.5 (Texas Instruments) is a part in the Power Management (PMIC) category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
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