LM317KAlternatives & Equivalent Parts
About LM317K
LM317K is a Integrated Circuit component manufactured by STMicroelectronics. It comes in a Other package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
Need pricing on these alternatives?
Get one quote covering all 6 alternatives for LM317K — response within 24 hours.
Specification Comparison
| Parameter | LM317KSource | SN74LVC1G126DBVT | BTS452T | SS-7188S-A-NF | LM317KCT | LM317KCSE3 | LM317KTTRG3 |
|---|---|---|---|---|---|---|---|
| Manufacturer | STMicroelectronics | Texas Instruments | Infineon | Stewart Connector | Texas Instruments | Texas Instruments | Texas Instruments |
| Package Type | Other | SOT23 (5-Pin) | Other | Other | Transistor Outline, Vertical | Transistor Outline, Vertical | Other |
| Pin Count | 2 | 5 | 4 | 10 | 3 | 3 | 4 |
| Temperature Range | — | -40.0°C ~ 125.0°C | — | — | — | ~ 125.0°C | ~ 125.0°C |
| Price | $3.0677 | $0.1620 | $1.2418 | $1.2203 | $0.1831 | $0.4851 | $0.4600 |
| Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | OBSOLETE | ACTIVE | ACTIVE | ACTIVE | OBSOLETE | NOT RECOMMENDED | ACTIVE |
| Electrical Parameters | |||||||
| YTEOL | 0 | 15 | 14 | 8 | 0 | 15 | 15 |
| Adjustability | ADJUSTABLE | — | — | — | ADJUSTABLE | ADJUSTABLE | ADJUSTABLE |
| Dropout Voltage1-Nom | 3 V | — | — | — | 2 V | 2 V | 2 V |
| Input-Output Voltage Differential-Max | 40 V | — | — | — | 40 V | 40 V | 40 V |
| Input-Output Voltage Differential-Min | 3 V | — | — | — | 3 V | 3 V | 3 V |
| JESD-30 Code | O-XBFM-P2 | R-PDSO-G5 | R-PSSO-G4 | — | R-PSFM-T3 | R-PSFM-T3 | R-PSSO-G3 |
| JESD-609 Code | e3 | e4 | e3 | e1 | e3 | e3 | e3 |
| Line Regulation-Max (%/V) | 0.07 | — | — | — | 0.07 | 0.07 | 0.07 |
| Load Regulation-Max(%) | 1.5% | — | — | — | 1.5% | 1.5% | 1.5% |
| Number of Functions | 1 | 1 | 1 | — | 1 | 1 | 1 |
| Number of Outputs | 1 | — | — | — | 1 | 1 | 1 |
| Operating Temperature TJ-Max | 125 °C | — | — | — | 125 °C | 125 °C | 125 °C |
| Output Current1-Max | 1.5 A | — | — | — | 1.5 A | 1.5 A | 1.5 A |
| Output Voltage1-Max | 37 V | — | — | — | 37 V | 37 V | 37 V |
| Output Voltage1-Min | 1.2 V | — | — | — | 1.25 V | 1.25 V | 1.25 V |
| Package Body Material | UNSPECIFIED | PLASTIC/EPOXY | PLASTIC/EPOXY | — | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Equivalence Code | TO-204/-3 | TSOP5/6,.11,37 | SMSIP5H,.37,50TB | — | SIP3,.1TB | SIP3,.1TB | SMSIP3H,.55TB |
| Package Shape | ROUND | RECTANGULAR | RECTANGULAR | — | RECTANGULAR | RECTANGULAR | RECTANGULAR |
| Package Style | FLANGE MOUNT | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH | SMALL OUTLINE | — | FLANGE MOUNT | FLANGE MOUNT | SMALL OUTLINE |
| Packing Method | TUBE | TR | — | — | TUBE | TUBE | TR |
| Qualification Status | 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 |
| Surface Mount | NO | YES | YES | — | NO | NO | YES |
| Technology | BIPOLAR | CMOS | MOS | — | BIPOLAR | BIPOLAR | BIPOLAR |
| Terminal Finish | Matte Tin (Sn) | Nickel/Palladium/Gold (Ni/Pd/Au) | Tin (Sn) | — | MATTE TIN | Matte Tin (Sn) | Matte Tin (Sn) |
| Terminal Form | PIN/PEG | GULL WING | GULL WING | — | THROUGH-HOLE | THROUGH-HOLE | GULL WING |
| Terminal Position | BOTTOM | DUAL | SINGLE | — | SINGLE | SINGLE | SINGLE |
| ## LM317K Alternates Showing results | Image | — | — | — | — | — | — |
| Pbfree Code | — | Yes | No | Yes | — | Yes | Yes |
| Control Type | — | ENABLE HIGH | — | — | — | — | — |
| Count Direction | — | UNIDIRECTIONAL | — | — | — | — | — |
| Family | — | LVC/LCX/Z | — | — | — | — | — |
| Load Capacitance (CL) | — | 50 pF | — | — | — | — | — |
| Logic IC Type | — | BUS DRIVER | — | — | — | — | — |
| Max I(ol) | — | 0.032 A | — | — | — | — | — |
| Number of Bits | — | 1 | — | — | — | — | — |
| Number of Ports | — | 2 | — | 1 | — | — | — |
| Output Characteristics | — | 3-STATE | — | — | — | — | — |
| Output Polarity | — | TRUE | — | — | — | — | — |
| Peak Reflow Temperature (Cel) | — | 260 | — | — | — | — | 245 |
| Power Supply Current-Max (ICC) | — | 0.01 mA | — | — | — | — | — |
| Prop. Delay@Nom-Sup | — | 4.5 ns | — | — | — | — | — |
| Propagation Delay (tpd) | — | 8 ns | — | — | — | — | — |
| Supply Voltage-Max (Vsup) | — | 5.5 V | — | — | — | — | — |
| Supply Voltage-Min (Vsup) | — | 1.65 V | — | — | — | — | — |
| Supply Voltage-Nom (Vsup) | — | 3.3 V | — | — | — | — | — |
| Temperature Grade | — | AUTOMOTIVE | — | — | — | — | — |
| Terminal Pitch | — | 0.95 mm | 1.14 mm | 2.54 mm | 2.54 mm | 2.54 mm | 2.54 mm |
| Time@Peak Reflow Temperature-Max (s) | — | 30 | — | — | — | — | 30 |
| ## SN74LVC1G126DBVT Alternates Showing results | — | Image | — | — | — | — | — |
| Built-in Protections | — | — | TRANSIENT; OVER CURRENT; OVER VOLTAGE; THERMAL; UNDER VOLTAGE | — | — | — | — |
| Driver Number of Bits | — | — | 1 | — | — | — | — |
| Interface IC Type | — | — | BUFFER OR INVERTER BASED PERIPHERAL DRIVER | — | — | — | — |
| Output Current Flow Direction | — | — | SINK | — | — | — | — |
| Output Current-Max | — | — | 1.8 A | — | — | — | — |
| Output Peak Current Limit-Nom | — | — | 2.2 A | — | — | — | — |
| Screening Level | — | — | AEC-Q100 | — | — | — | — |
| Supply Voltage-Max | — | — | 52 V | — | — | — | — |
| Supply Voltage-Min | — | — | 6 V | — | — | — | — |
| Supply Voltage-Nom | — | — | 12 V | — | — | — | — |
| Turn-off Time | — | — | 200 µs | — | — | — | — |
| Turn-on Time | — | — | 180 µs | — | — | — | — |
| Factory Lead Time | — | — | — | 17 Weeks | — | — | — |
| Additional Feature | — | — | — | SHIELDED | — | — | — |
| Board Mounting Option | — | — | — | SPLIT BOARD LOCK | — | — | — |
| Body Breadth | — | — | — | 0.55 inch | — | — | — |
| Body Depth | — | — | — | 0.85 inch | — | — | — |
| Body Length | — | — | — | 0.635 inch | — | — | — |
| Body/Shell Style | — | — | — | JACK | — | — | — |
| Connector Type | — | — | — | TELECOM AND DATACOM CONNECTOR | — | — | — |
| Contact Finish Mating | — | — | — | NOT SPECIFIED | — | — | — |
| Contact Finish Termination | — | — | — | Tin/Silver/Copper (Sn/Ag/Cu) - hot dipped | — | — | — |
| Contact Gender | — | — | — | FEMALE | — | — | — |
| Contact Material | — | — | — | NOT SPECIFIED | — | — | — |
| Contact Pattern | — | — | — | RECTANGULAR | — | — | — |
| Contact Style | — | — | — | TELCOM, MODULAR | — | — | — |
| DIN Conformance | — | — | — | NO | — | — | — |
| Empty Shell | — | — | — | NO | — | — | — |
| Filter Feature | — | — | — | NO | — | — | — |
| IEC Conformance | — | — | — | NO | — | — | — |
| Insulator Material | — | — | — | POLYETHYLENE | — | — | — |
| MIL Conformance | — | — | — | NO | — | — | — |
| Mixed Contacts | — | — | — | NO | — | — | — |
| Mounting Option 1 | — | — | — | LOCKING | — | — | — |
| Mounting Style | — | — | — | RIGHT ANGLE | — | — | — |
| Mounting Type | — | — | — | BOARD | — | — | — |
| Number Of PCB Rows | — | — | — | 2 | — | — | — |
| Number of Rows Loaded | — | — | — | 1 | — | — | — |
| Option | — | — | — | GENERAL PURPOSE | — | — | — |
| PCB Contact Pattern | — | — | — | STAGGERED | — | — | — |
| PCB Contact Row Spacing | — | — | — | 2.54 mm | — | — | — |
| Plating Thickness | — | — | — | 30u inch | — | — | — |
| Polarization Key | — | — | — | POLARIZED HOUSING | — | — | — |
| Reference Standard | — | — | — | UL | — | — | — |
| Shell Finish | — | — | — | NICKEL/TIN | — | — | — |
| Shell Material | — | — | — | COPPER ALLOY | — | — | — |
| Terminal Length | — | — | — | 0.125 inch | — | — | — |
| Termination Type | — | — | — | SOLDER | — | — | — |
| Total Number of Contacts | — | — | — | 8 | — | — | — |
| UL Flammability Code | — | — | — | 94V-0 | — | — | — |
| Input Voltage-Max | — | — | — | — | 40 V | 40 V | 40 V |
| Input Voltage-Min | — | — | — | — | 3 V | 3 V | 3 V |
| Voltage Tolerance-Max | — | — | — | — | 5% | 5% | 5% |
| Output Voltage1-Nom | — | — | — | — | — | 37 V | 37 V |
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 6 alternatives for LM317K — response within 24 hours.
Quick Links
suggested
suggested
Adjustable Positive Standard Regulator, 1.25V Min, 37V Max, BIPolar, PSFM3
Adjustable Positive Standard Regulator, 1.25V Min, 37V Max, BIPolar, PSFM3
Adjustable Positive Standard Regulator, 1.25V Min, 37V Max, BIPolar, PSSO3
Why Look for Alternatives?
Finding alternatives for LM317K 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 LM317K 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.
Can't Find What You Need?
Our sourcing team can help find compatible alternatives for LM317K. Get expert recommendations within 24 hours.
FAQ
What is equivalent to LM317K?
Known equivalents for LM317K include SN74LVC1G126DBVT, BTS452T, SS-7188S-A-NF. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of LM317K?
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 LM317K 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.