Texas Instruments LM317K STEEL
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $86.64 | $86.64 |
| 15+ | $83.90 | $1,258.50 |
| 25+ | $82.08 | $2,052.00 |
| 50+ | $77.52 | $3,876.00 |
| 100+ | $68.40 | $6,840.00 |
| N+ | $13.68 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Tray | |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 37V |
| 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-204AA, TO-3 |
| Supplier Device Package | TO-3-2 |
| ROHS |
The LM317K STEEL from Texas Instruments is a classic adjustable linear regulator, offering an output range from 1.25V to 37V with up to 1.5A of current. Its robust TO-3-2 metal package ensures excellent thermal performance and durability. With a high PSRR of 80dB at 120Hz, it delivers clean, stable power for a wide variety of applications, from bench supplies to industrial controls.
- Adjustable Output: 1.25V to 37V range provides design flexibility.
- High PSRR: 80dB at 120Hz ensures low noise output.
- Robust Package: TO-3-2 metal can for superior heat dissipation.
- High Current: 1.5A output supports a wide range of loads.
Adjustable Bench Power Supplies
Ideal for DIY and lab power supplies, offering a wide adjustable output range from 1.25V to 37V with up to 1.5A current.
Audio Amplifier Biasing
Provides a clean, adjustable supply for audio preamplifiers and op-amps, with high PSRR to minimize hum and noise.
Battery Chargers
Can be configured as a constant-current/constant-voltage charger for lead-acid or lithium batteries.
Industrial Control Systems
Used in PLCs and motor controllers for stable reference voltages, ensuring reliable operation in noisy industrial environments.
Test Equipment Calibration
Provides a precise adjustable voltage source for calibrating multimeters and other test instruments.
LED Driver Circuits
With its adjustable output, it can drive high-power LEDs with a constant current, ensuring consistent brightness.
- Q: What is the output voltage range of the LM317K STEEL?
- A: The output voltage is adjustable from 1.25V to 37V.
- Q: What is the maximum output current?
- A: It can provide 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.
- Q: What is the quiescent current?
- A: The quiescent current is 10 mA.
- Q: What is the PSRR?
- A: The power supply rejection ratio is 80dB to 65dB at 120Hz.
- Q: What package is available?
- A: It comes in a TO-3-2 metal can package.
- Q: What is the output voltage range of the LM317K STEEL?
- A: The output voltage is adjustable from 1.25V to 37V.
- Q: What is the maximum output current?
- A: It can provide 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.
- Q: What is the quiescent current?
- A: The quiescent current is 10 mA.
- Q: What is the PSRR?
- A: The power supply rejection ratio is 80dB to 65dB at 120Hz.
- Q: What package is available?
- A: It comes in a TO-3-2 metal can package.

LM317K STEEL.pdf