Alternatives to Texas Instruments LP3965ES-5.0 NOPB
Texas Instruments LP3965ES-5.0 NOPB and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 LP3965ES-5.0 NOPBTexas Instruments | LP3855ES-5.0/NOPBTexas Instruments |  MIC29151-5.0WUMicrochip Technology | |
|---|---|---|---|
| FFF Compatibility | Matches the TO-263-5 package and exact pin assignment: Pin 1 (Shutdown), Pin 2 (VIN), Pin 3 (GND/Tab), Pin 4 (VOUT), Pin 5 (SENSE).Housed in the identical TO-263-5 (DDPAK) surface mount package with the same physical dimensions and land pattern.Provides fixed 5.0V output, 1.5A load current capacity, and shares the same 7V maximum input voltage ceiling with improved dropout and Iq. | Pin 5 is an Error Flag (FLG) output, whereas the original LP3965 has a SENSE input. Pin 5 must be left floating or modified on the PCB layout.Housed in the standard TO-263-5 package with identical physical mounting footprint.Meets the 5.0V fixed output and 1.5A current requirements with similar 0.6V max dropout. | |
 AI Summary | LP3965ES-5.0 NOPB by Texas Instruments: Linear Voltage Regulator IC Positive Fixed 1 Output 1.5A TO-263 (DDPAK-5). | The LP3855ES-5.0/NOPB is the direct manufacturer-recommended drop-in sibling from the same Texas Instruments family. It is active, pin-compatible, matches the exact package, and offers superior electrical efficiency.
| The MIC29151-5.0WU is an active, robust industrial alternative from Microchip. However, Pin 5 functions as an open-collector Error Flag instead of a Sense pin, meaning layout modification is required to prevent Pin 5 from shorting VOUT to GND.
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| Lifecycle Status | Obsolete | Active | Active |
| Market Availability | Non-stock | In stock | In stock |
| REACH | REACH | REACH | REACH |
| RoHS | RoHS | RoHS | RoHS |
| Description | Linear Voltage Regulator IC Positive Fixed 1 Output 1.5A TO-263 (DDPAK-5) | Linear Voltage Regulator IC Positive Fixed 1 Output 1.5A TO-263 (DDPAK-5) | Linear Voltage Regulator IC Positive Fixed 1 Output 1.5A TO-263-5 |
| Manufacturer | Texas Instruments | Texas Instruments | Microchip Technology |
| Type | Power Management (PMIC) | Power Management (PMIC) | Power Management (PMIC) |
| Datasheet | Open | Open | Open |
| Lead Time | Unknown | 16 weeks | 14 weeks |
| 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 | 1.5A | - | - |
| 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 |
|---|---|---|---|
 LP3961ES-1.8Texas Instruments | Discontinued | Obsolete | 5Alternatives availableSee Alternatives |
| LP3966ES-3.3Texas Instruments | Discontinued | Obsolete | 4Alternatives availableSee Alternatives |
| LP3966ESX-ADJTexas Instruments | In stock | Obsolete | 5Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The Texas Instruments LP3965ES-5.0 NOPB 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 LP3965ES-5.0 NOPB are the LP3855ES-5.0/NOPB (Texas Instruments) and the MIC29151-5.0WU (Microchip Technology). Each is compared against the original on fit, form and function in the table above.
Not always. The alternatives to the LP3965ES-5.0 NOPB 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 LP3965ES-5.0 NOPB (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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