Texas Instruments LM317EMPX/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.15 | $1.15 |
| 15+ | $1.11 | $16.65 |
| 25+ | $1.09 | $27.25 |
| 50+ | $1.03 | $51.50 |
| 100+ | $0.91 | $91.00 |
| N+ | $0.18 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| 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 | Surface Mount |
| Package / Case | TO-261-4, TO-261AA |
| Supplier Device Package | SOT-223-4 |
| ROHS |  |
The LM317EMPX/NOPB from Texas Instruments is a versatile adjustable linear regulator with an output range of 1.25V to 37V and up to 1.5A current. Its high PSRR of 80dB at 120Hz ensures clean output, while the SOT-223-4 package offers a compact footprint. Ideal for power supplies, chargers, and audio applications.
- Adjustable Output: 1.25V to 37V range provides maximum design flexibility for various applications.
- High Output Current: 1.5A capability supports a wide range of loads.
- Excellent PSRR: 80dB at 120Hz minimizes ripple, ideal for audio and precision circuits.
- Compact SOT-223 Package: Saves board space while delivering robust performance.
Adjustable Bench Power Supplies
The LM317EMPX/NOPB's adjustable output from 1.25V to 37V makes it a staple for hobbyist and professional bench supplies, providing a stable, variable voltage for circuit testing.
LED Driver Circuits
Configured as a constant current source, this regulator drives high-power LEDs with precise current control, ensuring consistent brightness and longevity.
Battery Chargers
With adjustable voltage and current limiting, it can be used to charge various battery chemistries (Li-ion, lead-acid) safely and efficiently.
Audio Amplifier Bias Supplies
High PSRR of 80dB at 120Hz makes it ideal for providing clean bias voltages in audio preamps and power amplifiers, reducing hum and noise.
Industrial Sensor Conditioning
Provides adjustable reference voltages for sensor bridges and op-amp circuits, allowing fine-tuning of gain and offset in measurement systems.
Prototyping and Education
Its versatility and robustness make it a go-to component for electronics labs, enabling students and engineers to experiment with various voltage levels.
- Q: What is the output voltage range?
- A: Adjustable from 1.25V to 37V.
- Q: What is the maximum output current?
- A: 1.5A.
- Q: What is the input voltage range?
- A: Up to 40V (absolute maximum), with reference voltage of 1.25V.
- Q: What is the quiescent current?
- A: 10mA.
- Q: What is the PSRR?
- A: 80dB at 120Hz, 65dB at 120Hz (typical).
- Q: What package is available?
- A: SOT-223-4.
LM317EMPX/NOPB.pdf
- Q: What is the output voltage range?
- A: Adjustable from 1.25V to 37V.
- Q: What is the maximum output current?
- A: 1.5A.
- Q: What is the input voltage range?
- A: Up to 40V (absolute maximum), with reference voltage of 1.25V.
- Q: What is the quiescent current?
- A: 10mA.
- Q: What is the PSRR?
- A: 80dB at 120Hz, 65dB at 120Hz (typical).
- Q: What package is available?
- A: SOT-223-4.
