Texas Instruments LM317KCS
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.79 | $0.79 |
| 15+ | $0.76 | $11.40 |
| 25+ | $0.75 | $18.75 |
| 50+ | $0.71 | $35.50 |
| 100+ | $0.62 | $62.00 |
| N+ | $0.12 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Tube | |
| 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 | 0°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | TO-220-3 |
| Supplier Device Package | TO-220-3 |
| ROHS |  |
The LM317KCS from Texas Instruments is a versatile adjustable linear voltage regulator. It delivers a stable output from 1.25V to 37V with a maximum current of 1.5A. Housed in a TO-220-3 package, it offers excellent thermal performance for power applications. With a typical quiescent current of 10 mA and high PSRR, it ensures clean, reliable power for a wide range of electronic projects.
- Adjustable Output (1.25V-37V): Provides design flexibility for various voltage requirements without needing multiple fixed regulators.
- High Output Current (1.5A): Suitable for power-hungry loads like motors, audio amplifiers, and industrial sensors.
- Excellent PSRR (80dB @ 120Hz): Effectively filters out AC ripple, ensuring clean DC power for sensitive analog circuits.
- Robust TO-220 Package: Allows efficient heat dissipation, enabling reliable operation under continuous full load.
Adjustable Power Supply
Use the LM317KCS to build a variable bench power supply. Its 1.25V to 37V output range and 1.5A current capability make it ideal for testing circuits that require different supply voltages.
Battery Charger
Configure the LM317KCS as a constant-voltage/constant-current charger for lead-acid or lithium-ion batteries. The adjustable output allows precise voltage setting, while the 1.5A limit protects the battery.
Audio Amplifier Supply
Power low-noise audio preamplifiers with the LM317KCS. Its high PSRR (80dB at 120Hz) rejects mains hum, providing a clean DC rail for sensitive analog circuits.
Industrial Sensor Interface
Regulate power for industrial sensors requiring a stable, adjustable voltage. The TO-220 package with a heatsink can handle continuous loads up to 1.5A in harsh environments.
Laboratory Reference Voltage
Create a precise voltage reference for calibration equipment. The LM317KCS's low output noise and excellent line regulation ensure a stable reference point.
LED Driver
Drive high-power LEDs with a constant current using the LM317KCS in current-source mode. The adjustable output allows fine-tuning of LED brightness.
- Q: What is the output voltage range of the LM317KCS?
- A: The LM317KCS provides an adjustable output voltage from 1.25V up to 37V.
- Q: What is the maximum output current?
- A: It can deliver up to 1.5A of output current.
- Q: What is the input voltage range?
- A: The input voltage must be at least 1.25V above the desired output voltage, with a maximum input-to-output differential of 40V.
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 3V at maximum output current.
- Q: What is the quiescent current?
- A: The quiescent current is typically 10 mA.
- Q: What package is the LM317KCS available in?
- A: It comes in a TO-220-3 package, suitable for heatsinking in power applications.
LM317KCS.pdf
- Q: What is the output voltage range of the LM317KCS?
- A: The LM317KCS provides an adjustable output voltage from 1.25V up to 37V.
- Q: What is the maximum output current?
- A: It can deliver up to 1.5A of output current.
- Q: What is the input voltage range?
- A: The input voltage must be at least 1.25V above the desired output voltage, with a maximum input-to-output differential of 40V.
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 3V at maximum output current.
- Q: What is the quiescent current?
- A: The quiescent current is typically 10 mA.
- Q: What package is the LM317KCS available in?
- A: It comes in a TO-220-3 package, suitable for heatsinking in power applications.
