TAEJIN LM317R
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.33 | $1.33 |
| 15+ | $0.30 | $4.50 |
| 25+ | $0.30 | $7.50 |
| 50+ | $0.28 | $14.00 |
| 100+ | $0.25 | $25.00 |
| N+ | $0.05 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | TAEJIN |
| Product Series | |
| Packaging | Tape & Reel (TR) | |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 40V |
| Voltage - Output (Min/Fixed) | 1.25V |
| Voltage - Output (Max) | 37V |
| Voltage Dropout (Max) | - |
| Current - Output | 1.5A |
| Current - Quiescent (Iq) | 10 mA |
| Current - Supply (Max) | - |
| PSRR | 80dB ~ 65dB (120Hz) |
| Control Features | - |
| Protection Features | Over Current, Over Temperature, Short Circuit |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-263-4, D2PAK (3 Leads + Tab), TO-263AA |
| Supplier Device Package | TO-263-3 |
| ROHS |  |
The LM317R is a reliable adjustable linear voltage regulator capable of delivering 1.5A with an output voltage adjustable from 1.25V to 37V. Its high ripple rejection of 80dB at 120Hz makes it an excellent choice for audio and precision analog applications. The TO-263-3 package ensures efficient heat dissipation, supporting continuous operation at full load. This regulator offers a proven, flexible solution for a wide range of power supply designs.
- Flexible Output Range: 1.25V to 37V adjustable output accommodates a wide variety of design requirements.
- High Current Delivery: 1.5A output current supports demanding loads without additional parallel regulators.
- Excellent Noise Rejection: 80dB PSRR at 120Hz ensures clean output for sensitive analog circuits.
- Proven Reliability: Industry-standard architecture with robust TO-263-3 packaging for long-term stability.
Adjustable Power Supply for Prototyping
The 1.25V to 37V adjustable output makes it perfect for benchtop prototyping, allowing engineers to quickly test circuits at various voltages without changing power supplies.
Precision Voltage Reference
With its low noise and high PSRR (80dB at 120Hz), the LM317R can serve as a precision voltage reference for analog-to-digital converters and sensor interfaces.
Audio Equipment Power Supply
The excellent ripple rejection ensures a clean DC supply for audio preamplifiers, mixers, and effects pedals, minimizing hum and noise in the audio path.
Industrial Process Control
Provides stable, adjustable power for transmitters, controllers, and data acquisition systems in industrial environments with fluctuating input power.
Battery-Powered Backup Systems
Can be used to regulate a backup battery voltage to a stable level for critical loads, ensuring uninterrupted operation during power outages.
Solar Panel Charge Controllers
Used in simple charge controllers to regulate the output from solar panels to charge batteries at a safe, constant voltage.
- Q: What is the output voltage range of the LM317R?
- A: The LM317R is an adjustable regulator with an output voltage range from 1.25V to 37V, set by external resistors.
- Q: What is the maximum output current?
- A: The LM317R can deliver up to 1.5A of output current, making it suitable for a wide range of power applications.
- Q: What is the input voltage requirement?
- A: The input voltage must be at least 1.25V above the desired output voltage, with a maximum input-to-output differential of 37V.
- Q: What is the quiescent current?
- A: The quiescent current is typically 10 mA, which is a standard value for this class of adjustable regulators.
- Q: What is the PSRR?
- A: The PSRR is 80dB at 120Hz, providing excellent rejection of low-frequency ripple from AC mains.
- Q: What package is available?
- A: The LM317R is available in a TO-263-3 (D2PAK) package, offering good thermal performance for up to 1.5A loads.
LM317R.pdf
- Q: What is the output voltage range of the LM317R?
- A: The LM317R is an adjustable regulator with an output voltage range from 1.25V to 37V, set by external resistors.
- Q: What is the maximum output current?
- A: The LM317R can deliver up to 1.5A of output current, making it suitable for a wide range of power applications.
- Q: What is the input voltage requirement?
- A: The input voltage must be at least 1.25V above the desired output voltage, with a maximum input-to-output differential of 37V.
- Q: What is the quiescent current?
- A: The quiescent current is typically 10 mA, which is a standard value for this class of adjustable regulators.
- Q: What is the PSRR?
- A: The PSRR is 80dB at 120Hz, providing excellent rejection of low-frequency ripple from AC mains.
- Q: What package is available?
- A: The LM317R is available in a TO-263-3 (D2PAK) package, offering good thermal performance for up to 1.5A loads.
