Alternatives to National Semiconductor LM809M3X-3.08/NOPB
National Semiconductor LM809M3X-3.08/NOPB and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
Equivalent and substitute parts for National Semiconductor LM809M3X-3.08/NOPB
 LM809M3X-3.08/NOPBNational Semiconductor |  LM809M3-3.08/NOPBTexas Instruments |  MAX809TEUR+TAnalog Devices Inc./Maxim Integrated | +4more | |
|---|---|---|---|---|
| FFF Compatibility | Same SOT-23-3 footprint and pin assignment.Same physical package dimensions and mounting style.Exact same electrical characteristics and threshold voltage of 3.08V. | Same SOT-23-3 footprint and pinout verified via datasheet.Identical SOT-23-3 package body dimensions.Matches threshold voltage, active-low push-pull output, and operating temperature range. | ||
 AI Summary | LM809M3X-3.08/NOPB by National Semiconductor: Supervisor Push-Pull, Totem Pole 1 Channel SOT-23-3. | This is a direct drop-in sibling variant from Texas Instruments, differing only in the tape-and-reel packaging size (typically 1000 units instead of 3000 units). It guarantees perfect compatibility across all physical and electrical parameters.
| This is a highly reliable industry-standard alternative from Maxim Integrated (Analog Devices) with matching threshold voltage and active-low push-pull output. It serves as a direct second source with identical performance.
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| Lifecycle Status | Active | Active | Active | |
| Market Availability | In stock | In stock | In stock | |
| REACH | REACH | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 LMP8640MKX-H/NOPBTexas Instruments | Non-stock | Active | 4Alternatives availableSee Alternatives |
 LM50CIM3/NOPBTexas Instruments | In stock | Obsolete | 5Alternatives availableSee Alternatives |
 LM3478MAX/NOPBTexas Instruments | In stock | Active | 6Alternatives availableSee Alternatives |
| LM393M/NOPBTexas Instruments | In stock | Active | 4Alternatives availableSee Alternatives |
| LMP8640MK-H/NOPBTexas Instruments | In stock | Obsolete | 3Alternatives availableSee Alternatives |
| LM78L05ACM/NOPBTexas Instruments | In stock | Active | 10Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The National Semiconductor LM809M3X-3.08/NOPB is active and in production. The parts listed here are qualified equivalents if you need a second source or better availability.
The closest qualified second sources for the National Semiconductor LM809M3X-3.08/NOPB are the LM809M3-3.08/NOPB (Texas Instruments) and the MAX809TEUR+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 LM809M3X-3.08/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 LM809M3X-3.08/NOPB (National Semiconductor) 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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