TL317PSG4 Texas Instruments Integrated Circuit (Other) In Stock
The Texas Instruments TL317PSG4 is a 3-terminal adjustable linear voltage regulator with a dropout voltage of 5V and input-output differential range of 5V to 35V in an 8-pin SOIC package. It offers excellent line regulation of 0.05%/V and load regulation of 4.16% for stable adjustable output voltages. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- TL317PSG4 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fully adjustable output voltage using two external resistors, providing design flexibility for a wide range of regulated power supply applications
- Wide input-output voltage differential range of 5V to 35V supports diverse input supply configurations from low-voltage to medium-voltage systems
- Excellent line regulation of 0.05%/V ensures stable output voltage despite input supply fluctuations in sensitive analog and mixed-signal circuits
- RoHS-compliant 8-pin SOIC package enables easy surface-mount PCB integration with minimal external component count for compact regulator designs
Applications
The TL317PSG4 is used in adjustable bench power supplies, battery chargers, and general-purpose DC power regulation where a flexible output voltage set by external resistors is required. It is well-suited for analog circuit power rails in test and measurement equipment, industrial controllers, and embedded systems needing a simple, reliable linear regulation solution. The device also finds application in LED current regulation and low-current motor speed control where adjustable voltage or current limiting is needed.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| Adjustability | ADJUSTABLE |
| Dropout Voltage1-Nom | 5V |
| Input-Output Voltage Differential-Max | 35V |
| Input-Output Voltage Differential-Min | 5V |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Line Regulation-Max (%/V) | 0.05 |
| Load Regulation-Max(%) | 4.16% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -20 °C |
| Output Current1-Max | 0.1A |
| Output Voltage1-Max | 32V |
| Output Voltage1-Min | 1.2V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.3 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Regulator Type | ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TL317PSG4:
Adjustable Positive Standard Regulator, 1.2V Min, 32V Max, BIPolar, PDSO8
Adjustable Positive Standard Regulator, 1.2V Min, 32V Max, BIPolar, PDSO8
Frequently Asked Questions
How is the output voltage of the TL317PSG4 adjusted?
The TL317PSG4 output voltage is set by connecting two external resistors in a voltage divider configuration between the output, adjust, and ground pins; changing the resistor ratio allows the output to be adjusted over the supported voltage range.
What is the dropout voltage of the TL317PSG4?
The TL317PSG4 has a nominal dropout voltage of 5V, meaning the input supply must exceed the desired output voltage by at least 5V to maintain proper regulation — this should be accounted for in power supply design to ensure adequate headroom.
What package does the TL317PSG4 come in?
The TL317PSG4 is housed in an 8-pin SOIC package (JESD-30 code R-PDSO-G8), a standard surface-mount package that is easy to solder and compatible with automated PCB assembly, while keeping the board footprint compact.
What is the maximum input-output voltage differential for the TL317PSG4?
The TL317PSG4 supports a maximum input-output voltage differential of 35V, allowing it to regulate from high input voltages down to lower output voltages while the minimum differential is 5V to maintain regulation.
Is the TL317PSG4 suitable for battery charging applications?
Yes, the TL317PSG4 can be used in constant-voltage battery charging circuits where the adjustable output and good load regulation (4.16% maximum) provide a stable charging voltage, and its simple 3-terminal design reduces external component requirements for straightforward charger implementations.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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