STMicroelectronics LM317S-TR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.27 | $1.27 |
| 15+ | $0.29 | $4.35 |
| 25+ | $0.29 | $7.25 |
| 50+ | $0.27 | $13.50 |
| 100+ | $0.24 | $24.00 |
| N+ | $0.05 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | STMicroelectronics |
| Product Series | |
| Packaging | Tape & Reel (TR) | |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 40V |
| Voltage - Output (Min/Fixed) | 1.2V |
| Voltage - Output (Max) | 37V |
| Voltage Dropout (Max) | - |
| Current - Output | 1.5A |
| Current - Quiescent (Iq) | 5 mA |
| Current - Supply (Max) | - |
| PSRR | 65dB ~ 80dB (120Hz) |
| Control Features | - |
| Protection Features | Over Current, Over Temperature, Short Circuit |
| Operating Temperature | 0°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-261-4, TO-261AA |
| Supplier Device Package | SOT-223 |
| ROHS |  |
The LM317S-TR from STMicroelectronics is a robust, adjustable linear voltage regulator designed for a wide range of applications. It delivers a stable output voltage from 1.2V to 37V with a maximum current of 1.5A. Housed in a compact SOT-223 package, this LDO offers excellent ripple rejection and reliable performance for your power management needs.
- Wide Adjustable Range: Output from 1.2V to 37V provides maximum design flexibility for various voltage requirements.
- High Output Current: Capable of delivering up to 1.5A, suitable for powering demanding loads.
- Excellent Ripple Rejection: With a PSRR of 65dB to 80dB at 120Hz, it ensures a clean and stable output, ideal for audio and precision circuits.
- Compact SOT-223 Package: Saves valuable board space while providing efficient thermal performance for its current rating.
Adjustable Power Supply for Benchtop Testing
Use the LM317S-TR to create a versatile, adjustable bench power supply. Its 1.2V to 37V output range and 1.5A current capability make it ideal for powering a wide variety of circuits during development and testing.
Constant Voltage for LED Drivers
In lighting applications, the LM317S-TR can be configured as a constant current source to drive high-power LEDs. The adjustable output ensures consistent brightness and extends LED lifespan by preventing overcurrent.
Localized Regulation in Multi-Rail Systems
Use the LM317S-TR to provide a clean, stable local supply rail from a higher system voltage. This reduces noise coupling and improves the performance of sensitive analog and digital components.
Battery Charger Circuit
The adjustable voltage and current limiting features of the LM317S-TR make it suitable for building simple, effective battery chargers for various chemistries, ensuring safe and controlled charging.
Laboratory Instrumentation
For precision lab equipment, the LM317S-TR offers a reliable and low-noise power solution. Its high PSRR of 65dB to 80dB at 120Hz helps reject mains hum, ensuring accurate measurements.
- Q: What is the output voltage range of the LM317S-TR?
- A: The output voltage is adjustable from 1.2V up to 37V.
- Q: What is the maximum output current?
- A: The LM317S-TR can deliver up to 1.5A of output current.
- Q: What is the input voltage range?
- A: The input voltage range is from 1.2V up to 37V.
- Q: What is the dropout voltage?
- A: The dropout voltage is not specified in the provided technical data.
- Q: What is the quiescent current?
- A: The quiescent current is 5 mA.
- Q: What package is available?
- A: This device is available in the SOT-223 package.
LM317S-TR.pdf
- Q: What is the output voltage range of the LM317S-TR?
- A: The output voltage is adjustable from 1.2V up to 37V.
- Q: What is the maximum output current?
- A: The LM317S-TR can deliver up to 1.5A of output current.
- Q: What is the input voltage range?
- A: The input voltage range is from 1.2V up to 37V.
- Q: What is the dropout voltage?
- A: The dropout voltage is not specified in the provided technical data.
- Q: What is the quiescent current?
- A: The quiescent current is 5 mA.
- Q: What package is available?
- A: This device is available in the SOT-223 package.
