Part Details for LM317S by Texas Instruments
Results Overview of LM317S by Texas Instruments
- Distributor Offerings: (2 listings)
- Number of FFF Equivalents: (4 replacements)
- Tariff Estimator: (Available) NEW
- Number of Functional Equivalents: (10 options)
- CAD Models: (Request Part)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
LM317S Information
LM317S by Texas Instruments is a Linear Regulator IC.
Linear Regulator ICs are under the broader part category of Power Circuits.
A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.
Price & Stock for LM317S
| Part # | Distributor | Description | Stock | Price | Buy | |
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Chip Stock | Standard Regulator Pos 1.2V to 37V 1.5A 4-Pin(3+Tab) TO-263 Rail | 33500 |
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RFQ | |
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Win Source Electronics | IC REG LINEAR ADJ 1.5A DDPAK / Standard Regulator Pos 1.2V to 37V 1.5A 4-Pin(3+Tab) TO-263 Rail | 80904 |
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$0.6241 / $0.8016 | Buy Now |
US Tariff Estimator: LM317S by Texas Instruments
Calculations from this tool are estimations only for imports into the United States. Please refer to the distributor or manufacturer and reference official US government sources and authorities to verify any final purchase costs.
Part Details for LM317S
LM317S Part Data Attributes
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LM317S
Texas Instruments
Buy Now
Datasheet
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Compare Parts:
LM317S
Texas Instruments
Adjustable Positive Standard Regulator, 1.2V Min, 37V Max, BIPolar, PSSO3
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| Pbfree Code | No | |
| Part Life Cycle Code | Obsolete | |
| Part Package Code | D2PAK | |
| Package Description | To-263, 3 Pin | |
| Pin Count | 4 | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.60 | |
| Adjustability | Adjustable | |
| Dropout Voltage1-Nom | 3 V | |
| Input-Output Voltage Differential-Max | 40 V | |
| Input-Output Voltage Differential-Min | 3 V | |
| JESD-30 Code | R-PSSO-G3 | |
| JESD-609 Code | e0 | |
| Length | 10.16 Mm | |
| Line Regulation-Max (%/V) | 0.07 | |
| Load Regulation-Max(%) | 1.5% | |
| Moisture Sensitivity Level | 3 | |
| Number of Functions | 1 | |
| Number of Outputs | 1 | |
| Number of Terminals | 3 | |
| Operating Temperature TJ-Max | 125 °C | |
| Operating Temperature TJ-Min | ||
| Output Current1-Max | 1.5 A | |
| Output Voltage1-Max | 37 V | |
| Output Voltage1-Min | 1.2 V | |
| Package Body Material | Plastic/Epoxy | |
| Package Code | TO-263 | |
| Package Equivalence Code | SMSIP3H,.55TB | |
| Package Shape | Rectangular | |
| Package Style | Small Outline | |
| Packing Method | Rail | |
| Peak Reflow Temperature (Cel) | 235 | |
| Qualification Status | Not Qualified | |
| Regulator Type | Adjustable Positive Single Output Standard Regulator | |
| Seated Height-Max | 4.79 Mm | |
| Surface Mount | Yes | |
| Technology | Bipolar | |
| Terminal Finish | Tin Lead | |
| Terminal Form | Gull Wing | |
| Terminal Pitch | 2.54 Mm | |
| Terminal Position | Single | |
| Time@Peak Reflow Temperature-Max (s) | 20 | |
| Width | 8.64 Mm |
Alternate Parts for LM317S
This table gives cross-reference parts and alternative options found for LM317S. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of LM317S, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.
| Part Number | Manufacturer | Composite Price | Description | Compare |
|---|---|---|---|---|
| LM317S/NOPB | Texas Instruments | $0.9693 | Adjustable Positive Standard Regulator, 1.2V Min, 37V Max, BIPolar, PSSO3 | LM317S vs LM317S/NOPB |
| LM317SX/NOPB | Texas Instruments | $1.0368 | Adjustable Positive Standard Regulator, 1.2V Min, 37V Max, BIPolar, PSSO3 | LM317S vs LM317SX/NOPB |
| LM317SX | Rochester Electronics LLC | Check for Price | 1.2 V-37V ADJUSTABLE POSITIVE REGULATOR, PSSO3, TO-263, 3 PIN | LM317S vs LM317SX |
| LM317SX | National Semiconductor Corporation | Check for Price | Adjustable Positive Standard Regulator, 1.2V Min, 37V Max, BIPolar, PSSO3 | LM317S vs LM317SX |
LM317S Frequently Asked Questions (FAQ)
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The minimum input voltage required for the LM317S to operate is 3V above the output voltage. For example, if the output voltage is 5V, the minimum input voltage would be 8V.
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To ensure stability and prevent oscillations, a minimum output capacitance of 1uF is recommended. Additionally, the input capacitor should be at least 10uF to prevent oscillations.
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The maximum current that the LM317S can deliver is 1.5A. However, it's recommended to derate the current to 1A or less to ensure reliable operation.
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No, the LM317S is designed to regulate positive voltages only. If you need a negative voltage regulator, you should consider using a different IC, such as the LM337.
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The output voltage of the LM317S can be adjusted by using a resistive divider network between the output and the adjust pin. The output voltage is determined by the ratio of the resistors and the reference voltage (1.25V).