LM317EMPXAlternatives & Equivalent Parts
About LM317EMPX
LM317EMPX is a Integrated Circuit component manufactured by Texas Instruments. It comes in a SOT223 (3-Pin) package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
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Specification Comparison
| Parameter | LM317EMPXSource | LM317EMP | LM317AEMP/NOPB | LM317LMX/NOPB | LM317D2T-TR | M95010-WMN6TP | AQY212GH | TC4431VPA | LM317EMPX/NOPB |
|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | STMicroelectronics | STMicroelectronics | Panasonic | Microchip | Texas Instruments |
| Package Type | SOT223 (3-Pin) | SOT223 (3-Pin) | SOT223 (3-Pin) | Small Outline Packages | Other | Small Outline Packages | Dual-In-Line Packages | Dual-In-Line Packages | SOT223 (3-Pin) |
| Pin Count | 4 | 4 | 4 | 8 | 3 | 8 | 4 | 8 | 4 |
| Temperature Range | — | — | -40.0°C ~ 125.0°C | -40.0°C ~ 125.0°C | — | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 125.0°C | — |
| Price | $0.4131 | $0.4467 | $0.4395 | $0.2000 | $0.4900 | $0.2181 | $1.4000 | $1.8582 | $0.5940 |
| Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | OBSOLETE | OBSOLETE | ACTIVE | ACTIVE | ACTIVE | NOT RECOMMENDED | ACTIVE | ACTIVE | ACTIVE |
| Electrical Parameters | |||||||||
| Pbfree Code | No | Yes | Yes | Yes | — | — | Yes | Yes | Yes |
| YTEOL | 0 | 0 | 15 | 15 | 6.24 | 3 | 5.59 | 9 | 15 |
| Adjustability | ADJUSTABLE | ADJUSTABLE | ADJUSTABLE | ADJUSTABLE | ADJUSTABLE | — | — | — | ADJUSTABLE |
| Dropout Voltage1-Nom | 3 V | 2.25 V | 2.25 V | 1.8 V | 3 V | — | — | — | 2.25 V |
| Input-Output Voltage Differential-Max | 40 V | 40 V | 40 V | 40 V | 40 V | — | — | — | 40 V |
| Input-Output Voltage Differential-Min | 3 V | 3 V | 3 V | 3 V | 3 V | — | — | — | 3 V |
| JESD-30 Code | R-PDSO-G3 | R-PDSO-G3 | R-PDSO-G4 | R-PDSO-G8 | R-PSSO-G2 | R-PDSO-G8 | — | R-PDIP-T8 | R-PDSO-G4 |
| JESD-609 Code | e0 | e0 | e3 | e3 | e3 | e4 | — | e3 | e3 |
| Line Regulation-Max (%/V) | 0.07 | 0.07 | 0.02 | 0.07 | 0.07 | — | — | — | 0.05 |
| Load Regulation-Max(%) | 1.5% | 1.5% | 1% | 1.5% | 1.5% | — | — | — | 1% |
| Number of Functions | 1 | 1 | 1 | 1 | 1 | 1 | — | 1 | 1 |
| Number of Outputs | 1 | 1 | 1 | 1 | 1 | — | — | — | 1 |
| Operating Temperature TJ-Max | 125 °C | 125 °C | 125 °C | 125 °C | 125 °C | — | — | — | 125 °C |
| Output Current1-Max | 1 A | 1.5 A | 1.5 A | 0.1 A | 1.5 A | — | — | — | 1.5 A |
| Output Voltage1-Max | 37 V | 37 V | 37 V | 38 V | 37 V | — | — | — | 37 V |
| Output Voltage1-Min | 1.2 V | 1.2 V | 1.2 V | 1.2 V | 1.2 V | — | — | — | 1.2 V |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | — | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Equivalence Code | SOT-223 | SOT-223 | SOT-223 | SOP8,.25 | SMSIP3H,.55TB | SOP8,.25 | — | DIP8,.3 | — |
| Package Shape | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | — | RECTANGULAR | RECTANGULAR |
| Package Style | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE, HEAT SINK/SLUG | SMALL OUTLINE | — | IN-LINE | SMALL OUTLINE |
| Packing Method | TR | TR | TR | TR | TR | — | TUBE | — | TR |
| Peak Reflow Temperature (Cel) | 260 | 260 | 260 | 260 | 245 | 260 | — | — | 260 |
| Qualification Status | Not Qualified | Not Qualified | Not Qualified | Not Qualified | Not Qualified | Not Qualified | — | Not Qualified | Not Qualified |
| Regulator Type | ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR | ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR | ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR | ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR | ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR | — | — | — | ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR |
| Surface Mount | YES | YES | YES | YES | YES | YES | NO | NO | YES |
| Technology | BIPOLAR | BIPOLAR | BIPOLAR | BIPOLAR | BIPOLAR | CMOS | — | CMOS | BIPOLAR |
| Terminal Finish | TIN LEAD | TIN LEAD | Matte Tin (Sn) | Matte Tin (Sn) | Matte Tin (Sn) | Nickel/Palladium/Gold (Ni/Pd/Au) | — | Matte Tin (Sn) | Matte Tin (Sn) |
| Terminal Form | GULL WING | GULL WING | GULL WING | GULL WING | GULL WING | GULL WING | — | THROUGH-HOLE | GULL WING |
| Terminal Pitch | 2.3 mm | 2.3 mm | 2.3 mm | 1.27 mm | 2.54 mm | 1.27 mm | — | 2.54 mm | 2.3 mm |
| Terminal Position | DUAL | DUAL | DUAL | DUAL | SINGLE | DUAL | — | DUAL | DUAL |
| ## LM317EMPX Alternates Showing results | Image | — | — | — | — | — | — | — | — |
| Date Of Intro | — | 1997-11-01 | — | — | — | — | — | — | — |
| Input Voltage-Max | — | 40 V | 40 V | 40 V | — | — | — | — | 40 V |
| Input Voltage-Min | — | 3 V | 3 V | 4.2 V | — | — | — | — | 3 V |
| Voltage Tolerance-Max | — | 5% | 5% | 3% | — | — | — | — | 5% |
| ## LM317EMP Alternates Showing results | — | Image | — | — | — | — | — | — | — |
| Operating Temperature TJ-Min | — | — | -40 °C | -40 °C | — | — | — | — | — |
| Output Voltage1-Nom | — | — | 37 V | — | — | — | — | — | — |
| Time@Peak Reflow Temperature-Max (s) | — | — | 30 | 30 | 30 | 30 | — | — | 30 |
| ## LM317AEMP/NOPB Alternates Showing results | — | — | Image | — | — | — | — | — | — |
| ## LM317LMX/NOPB Alternates Showing results | — | — | — | Image | — | — | — | — | — |
| Factory Lead Time | — | — | — | — | 8 Weeks | 8 Weeks | 19 Weeks | 25 Weeks | — |
| ## LM317D2T-TR Alternates Showing results | — | — | — | — | Image | — | — | — | — |
| Clock Frequency-Max (fCLK) | — | — | — | — | — | 10 MHz | — | — | — |
| Data Retention Time-Min | — | — | — | — | — | 40 | — | — | — |
| Endurance | — | — | — | — | — | 1000000 Write/Erase Cycles | — | — | — |
| Memory Density | — | — | — | — | — | 1024 bit | — | — | — |
| Memory IC Type | — | — | — | — | — | EEPROM | — | — | — |
| Memory Width | — | — | — | — | — | 8 | — | — | — |
| Number of Words | — | — | — | — | — | 128 words | — | — | — |
| Number of Words Code | — | — | — | — | — | 128 | — | — | — |
| Operating Mode | — | — | — | — | — | SYNCHRONOUS | — | — | — |
| Organization | — | — | — | — | — | 128X8 | — | — | — |
| Parallel/Serial | — | — | — | — | — | SERIAL | — | — | — |
| Serial Bus Type | — | — | — | — | — | SPI | — | — | — |
| Standby Current-Max | — | — | — | — | — | 0.000002 A | — | — | — |
| Supply Current-Max | — | — | — | — | — | 0.002 mA | — | 6 mA | — |
| Supply Voltage-Max (Vsup) | — | — | — | — | — | 5.5 V | — | — | — |
| Supply Voltage-Min (Vsup) | — | — | — | — | — | 2.5 V | — | — | — |
| Supply Voltage-Nom (Vsup) | — | — | — | — | — | 5 V | — | — | — |
| Temperature Grade | — | — | — | — | — | INDUSTRIAL | — | AUTOMOTIVE | — |
| Write Cycle Time-Max (tWC) | — | — | — | — | — | 5 ms | — | — | — |
| Write Protection | — | — | — | — | — | HARDWARE/SOFTWARE | — | — | — |
| ## M95010-WMN6TP Alternates Showing results | — | — | — | — | — | Image | — | — | — |
| Additional Feature | — | — | — | — | — | — | UL RECOGNIZED, VDE APPROVED | — | — |
| Configuration | — | — | — | — | — | — | SINGLE | — | — |
| Control Current | — | — | — | — | — | — | 1.1 A | — | — |
| Control Voltage | — | — | — | — | — | — | 1.32 V | — | — |
| Forward Current-Max | — | — | — | — | — | — | 0.01 A | — | — |
| Input Type | — | — | — | — | — | — | AC/DC | — | — |
| Isolation Voltage-Max | — | — | — | — | — | — | 5000 V | — | — |
| Mounting Feature | — | — | — | — | — | — | THROUGH HOLE MOUNT | — | — |
| Number of Elements | — | — | — | — | — | — | 1 | — | — |
| On-State Current-Max | — | — | — | — | — | — | 1.1 A | — | — |
| On-state Resistance-Max | — | — | — | — | — | — | 0.7 Ω | — | — |
| Optoelectronic Device Type | — | — | — | — | — | — | TRANSISTOR OUTPUT SSR | — | — |
| Output Circuit Type | — | — | — | — | — | — | MOSFET | — | — |
| Overall Height | — | — | — | — | — | — | 2.9 mm | — | — |
| Overall Length | — | — | — | — | — | — | 6.4 mm | — | — |
| Manufacturer Package Code | — | — | — | — | — | — | — | PDIP-8 | — |
| High Side Driver | — | — | — | — | — | — | — | YES | — |
| Input Characteristics | — | — | — | — | — | — | — | SCHMITT TRIGGER | — |
| Interface IC Type | — | — | — | — | — | — | — | BUFFER OR INVERTER BASED MOSFET DRIVER | — |
| Output Characteristics | — | — | — | — | — | — | — | TOTEM-POLE | — |
| Output Peak Current Limit-Nom | — | — | — | — | — | — | — | 3 A | — |
| Output Polarity | — | — | — | — | — | — | — | INVERTED | — |
| Screening Level | — | — | — | — | — | — | — | TS 16949 | — |
| Supply Voltage-Max | — | — | — | — | — | — | — | 30 V | — |
| Supply Voltage-Min | — | — | — | — | — | — | — | 4.5 V | — |
| Supply Voltage1-Max | — | — | — | — | — | — | — | 30 V | — |
| Supply Voltage1-Min | — | — | — | — | — | — | — | 4.5 V | — |
| Turn-off Time | — | — | — | — | — | — | — | 0.17 µs | — |
| Turn-on Time | — | — | — | — | — | — | — | 0.17 µs | — |
| ## TC4431VPA Alternates Showing results | — | — | — | — | — | — | — | Image | — |
| ## LM317EMPX/NOPB Alternates Showing results | — | — | — | — | — | — | — | — | Image |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Need pricing on these alternatives?
Get one quote covering all 8 alternatives for LM317EMPX — response within 24 hours.
Quick Links
Regulator, 1.2V Min, 37V Max, BIPolar, PDSO3
Regulator, 1.2V Min, 37V Max, BIPolar, PDSO4
suggested
suggested
suggested
Adjustable Positive Standard Regulator, 1.2V Min, 37V Max, BIPolar, PDSO4
Why Look for Alternatives?
Finding alternatives for LM317EMPX is essential for supply chain resilience. Component shortages, long lead times, and end-of-life notices can disrupt production schedules. Having verified alternative parts ensures your designs remain manufacturable.
When evaluating LM317EMPX replacements, consider key parameters such as package compatibility, electrical specifications, and operating temperature range. Our engineering team can help verify pin-to-pin compatibility for your specific application.
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FAQ
What is equivalent to LM317EMPX?
Known equivalents for LM317EMPX include LM317EMP, LM317AEMP/NOPB, LM317LMX/NOPB. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of LM317EMPX?
In many cases, yes. Cross-manufacturer alternatives exist for most standard components. However, always verify pin compatibility, electrical specs, and package dimensions before substituting in production.
How do I verify LM317EMPX alternatives?
Compare the datasheet specifications including pinout, voltage ratings, timing parameters, and package dimensions. FindMyChip's engineering team can help with compatibility verification — submit an RFQ to get started.