Alternatives to Texas Instruments LP3961ES-1.8
Texas Instruments LP3961ES-1.8 and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 LP3961ES-1.8Texas Instruments |  LP3961ES-1.8/NOPBTexas Instruments | LP3961ESX-1.8/NOPBTexas Instruments | +3more | |
|---|---|---|---|---|
| FFF Compatibility | Shares the identical DDPAK/TO-263-5 package and pinout assignment as the original part.Identical package shape, dimensions, and layout.Identical electrical performance, including 800mA current limit, 1.8V output, and 7V maximum input voltage. | Shares the identical DDPAK/TO-263-5 package and pinout assignment as the original part.Identical package shape, dimensions, and layout.Identical electrical specifications, including 1.8V fixed output and 800mA load current capability. | ||
 AI Summary | LP3961ES-1.8 by Texas Instruments: Linear Voltage Regulator IC Positive Fixed 1 Output 800mA TO-263 (DDPAK-5). | This is the direct lead-free (RoHS compliant) equivalent of the obsolete original part. It is a true drop-in replacement that requires no schematic or PCB layout modifications.
| This is the tape-and-reel version of the NOPB replacement, ideal for automated pick-and-place manufacturing lines. It offers identical electrical and physical characteristics.
| |
| Lifecycle Status | Obsolete | Active | Unknown | |
| Market Availability | Discontinued | In stock | Unknown | |
| REACH | REACH | REACH | Unknown | |
| RoHS | RoHS | RoHS | Unknown | |
| Description | Linear Voltage Regulator IC Positive Fixed 1 Output 800mA TO-263 (DDPAK-5) | Linear Voltage Regulator IC Positive Fixed 1 Output 800mA TO-263 (DDPAK-5) | This is the tape-and-reel version of the NOPB replacement, ideal for automated pick-and-place manufacturing lines. It offers identical elect | |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | |
| Type | Power Management (PMIC) | Power Management (PMIC) | Component | |
| Datasheet | Open | Open | N/A | |
| Lead Time | 6 weeks | 16 weeks | Unknown | |
| Country of Origin | - | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8542.39.0090 | - | - | |
| Moisture Sensitivity Level | 3 (168 Hours) | - | - | |
| Output Type | Fixed | - | - | |
| Mounting Type | Surface Mount | - | - | |
| Package / Case | TO-263-6, D2PAK (5 Leads + Tab), TO-263BA | - | - | |
| Control Features | Enable | - | - | |
| Current - Output | 800mA | - | - | |
| Protection Features | Over Current, Over Temperature, Short Circuit | - | - | |
| Number of Regulators | 1 | - | - | |
| Output Configuration | Positive | - | - |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 LP3966ES-3.3Texas Instruments | Discontinued | Obsolete | 4Alternatives availableSee Alternatives |
| LP3966ESX-ADJTexas Instruments | In stock | Obsolete | 5Alternatives availableSee Alternatives |
| LP3965ES-5.0 NOPBTexas Instruments | Non-stock | Obsolete | 2Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The Texas Instruments LP3961ES-1.8 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 LP3961ES-1.8 are the LP3961ES-1.8/NOPB (Texas Instruments) and the LP3961ESX-1.8/NOPB (Texas Instruments), out of 5 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 LP3961ES-1.8 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 LP3961ES-1.8 (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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