Texas Instruments LM317AT/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.93 | $1.93 |
| 15+ | $1.87 | $28.05 |
| 25+ | $1.83 | $45.75 |
| 50+ | $1.73 | $86.50 |
| 100+ | $1.52 | $152.00 |
| N+ | $0.30 | 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 | -40°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | TO-220-3 |
| Supplier Device Package | TO-220-3 |
| ROHS |  |
The LM317AT/NOPB from Texas Instruments is a versatile adjustable linear regulator supporting output voltages from 1.25V to 37V and currents up to 1.5A. Its TO-220-3 package allows efficient heat dissipation. With 80dB PSRR at 120Hz, it delivers clean power for audio and precision analog applications.
- Adjustable Output: 1.25V to 37V range provides design flexibility across multiple applications.
- High Current: 1.5A capability supports power-hungry loads.
- Excellent PSRR: 80dB at 120Hz rejects mains ripple for clean audio power.
- Thermal Robustness: TO-220 package with tab for heatsinking ensures reliable operation.
Adjustable Bench Power Supplies
The 1.25V to 37V adjustable range and 1.5A capability make it a classic choice for DIY and lab power supplies.
LED Driver Circuits
Configured as a constant current source, the LM317AT can drive high-power LEDs with stable current up to 1.5A.
Audio Amplifier Rails
With 80dB PSRR at 120Hz, it provides clean, low-noise supply rails for audio preamplifiers.
Battery Chargers
The adjustable output allows precise voltage settings for charging lead-acid or Li-ion batteries.
Industrial Control Systems
Robust TO-220 package and high current capability suit industrial sensors and actuators requiring regulated power.
- Q: What is the output voltage range of the LM317AT/NOPB?
- A: The LM317AT is an adjustable regulator with an output voltage range 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 range is not explicitly specified in the provided data; the output can be set from 1.25V to 37V, so input must be higher than the desired output plus dropout.
- Q: What is the dropout voltage?
- A: The dropout voltage is not directly specified, but typical values are around 2V at full load; refer to the datasheet for details.
- Q: What is the quiescent current?
- A: The quiescent current is approximately 10 mA.
- Q: What package is available?
- A: It is available in the TO-220-3 package, suitable for heatsinking.
LM317AT/NOPB.pdf
- Q: What is the output voltage range of the LM317AT/NOPB?
- A: The LM317AT is an adjustable regulator with an output voltage range 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 range is not explicitly specified in the provided data; the output can be set from 1.25V to 37V, so input must be higher than the desired output plus dropout.
- Q: What is the dropout voltage?
- A: The dropout voltage is not directly specified, but typical values are around 2V at full load; refer to the datasheet for details.
- Q: What is the quiescent current?
- A: The quiescent current is approximately 10 mA.
- Q: What package is available?
- A: It is available in the TO-220-3 package, suitable for heatsinking.
