Texas Instruments LM317EMPX/NOPB Microcontrollers
Adj.
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
LM317EMPX/NOPB
Detailed Description
Adj. Linear Voltage Regulator, 1A, 40V, SOT-223
Package
TO-261-4, TO-261AA
Lifecycle Status
Active
Datasheet
LM317EMPX/NOPB Datasheet
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Technical Specifications
Texas Instruments LM317EMPX/NOPB Microcontrollers technical specifications.
General
RoHS
Yes
Package / Case
TO-261-4, TO-261AA
Mounting Type
Surface Mount
Operating Temperature
0°C ~ 125°C
Lifecycle Status
Active
Output Type
Adjustable
Max Input Voltage
37V
Output Current
1.5A
Output Configuration
Positive
Output Voltage
1.25V
Related Parts Comparison (LM317EMPX/NOPB vs LM317MDCYRG3 vs REG1118-2.85/2K5 vs TLV1117-15CDCYRG3)
Side-by-side specifications of related catalog parts.
Engineering verification required. Related parts may have different electrical ratings, pinouts, footprints, and operating limits. Verify suitability for your circuit before substitution.
| This Part | Related Part | Related Part | Related Part | |
|---|---|---|---|---|
| Package / Case | TO-261-4, TO-261AA | TO-261-4, TO-261AA | TO-261-4, TO-261AA | TO-261-4, TO-261AA |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | 0°C ~ 125°C | -40°C ~ 125°C (TJ) | 0°C ~ 70°C | 0°C ~ 125°C |
| Lifecycle Status | Active | Active | Active | Active |
| Max Input Voltage | 37V | 40V | 6V | 15V |
| Number of Regulators | 1 | 1 | 1 | 1 |
| Output Configuration | Positive | Positive | Positive | Positive |
| Output Current | 1.5A | 500mA | 800mA | 800mA |
| Output Type | Adjustable | Adjustable | Fixed | Fixed |
| Output Voltage | 1.25V | 1.25V | 2.85V | 1.5V |
| Protection Features | Over Current, Over Temperature, Short Circuit | Over Current, Over Temperature, Short Circuit | Over Current, Over Temperature | Over Current, Over Temperature |
| PSRR | 80dB ~ 65dB (120Hz) | 80dB ~ 65dB (120Hz) | 56dB (120Hz) | 75dB (120Hz) |
| Action |
Cross Reference
Manufacturer-stated alternates from official cross-reference tools. These are not a guaranteed pin-compatible drop-in. Qualify package, pinout, and electrical limits against the datasheet before a board change. See cross-reference vs drop-in compatible .
Suggested replacements
LM317D2TR4GonsemiDirectonsemi
Pin YesPkg YesElec Yes
Adjustable LDO, 1.5A, 40V In, 37V Out, 80dB PSRR, D2PAK
LM317D2TGonsemiSimilaronsemi
Pin NoPkg NoElec Mixed
Adj.
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