Alternatives to Texas Instruments LP2981A-33DBVT
Texas Instruments LP2981A-33DBVT and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 LP2981A-33DBVTTexas Instruments | LP2981A-33DBVRTexas Instruments | LP2981-33DBVRTexas Instruments | +2more | |
|---|---|---|---|---|
| FFF Compatibility | Identical pinout and package dimensions (SOT-23-5).Identical SOT-23-5 package dimensions and mounting.Identical electrical performance, voltage ratings, and accuracy. | Identical pinout and package dimensions (SOT-23-5).Identical SOT-23-5 package dimensions and mounting.Same 16V input, 100mA output, and low dropout characteristics. | ||
 AI Summary | LP2981A-33DBVT by Texas Instruments: Linear Voltage Regulator IC Positive Fixed 1 Output 100mA SOT-23-5. | The LP2981A-33DBVR is the direct sibling of the obsolete LP2981A-33DBVT, differing only in the distributor packaging order quantity (large reel 'R' vs. small reel 'T'). It provides an absolute drop-in replacement with zero modifications required.
| The LP2981-33DBVR is the standard grade version of the LP2981A. It is fully pin-compatible and electrically identical except for a slightly wider output voltage tolerance.
| |
| Lifecycle Status | Obsolete | Active | Active | |
| Market Availability | In stock | In stock | In stock | |
| REACH | REACH | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
| Description | Linear Voltage Regulator IC Positive Fixed 1 Output 100mA SOT-23-5 | Linear Voltage Regulator IC Positive Fixed 1 Output 100mA SOT-23-5 | Linear Voltage Regulator IC Positive Fixed 1 Output 100mA SOT-23-5 | |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | |
| Type | Power Management (PMIC) | Power Management (PMIC) | Power Management (PMIC) | |
| Datasheet | Open | Open | Open | |
| Lead Time | 6 weeks | 16 weeks | 16 weeks | |
| Country of Origin | CN, MY, US | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8542.39.0060 | - | - | |
| Moisture Sensitivity Level | 1 (Unlimited) | - | - | |
| PSRR | 63dB (1kHz) | - | - | |
| Output Type | Fixed | - | - | |
| Mounting Type | Surface Mount | - | - | |
| Package / Case | SC-74A, SOT-753 | - | - | |
| Control Features | Enable | - | - | |
| Current - Output | 100mA | - | - | |
| Protection Features | Over Current, Over Temperature, Short Circuit | - | - | |
| Number of Regulators | 1 | - | - |
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Frequently asked questions
Yes. The Texas Instruments LP2981A-33DBVT 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 LP2981A-33DBVT are the LP2981A-33DBVR (Texas Instruments) and the LP2981-33DBVR (Texas Instruments), out of 4 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 LP2981A-33DBVT 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 LP2981A-33DBVT (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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