Texas Instruments LM317AEMPX/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $2.04 | $2.04 |
| 15+ | $1.98 | $29.70 |
| 25+ | $1.94 | $48.50 |
| 50+ | $1.83 | $91.50 |
| 100+ | $1.61 | $161.00 |
| N+ | $0.32 | 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) | 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 | Surface Mount |
| Package / Case | TO-261-4, TO-261AA |
| Supplier Device Package | SOT-223-4 |
| ROHS |
The LM317AEMPX/NOPB from Texas Instruments is a robust adjustable LDO regulator offering an output range from 1.25V to 37V with up to 1.5A current capability. With a quiescent current of 10 mA and excellent PSRR of 80dB at 120Hz, it delivers clean, stable power for demanding applications. The SOT-223-4 package provides a compact yet powerful solution for variable power supplies, chargers, and industrial equipment.
- Wide Adjustable Range: Output from 1.25V to 37V provides maximum flexibility for various applications.
- High Current: 1.5A output capability supports power-hungry loads.
- Excellent Noise Rejection: 80dB PSRR at 120Hz ensures clean power for audio and precision circuits.
- Versatile Package: SOT-223-4 offers a balance of thermal performance and compact size.
Variable Power Supplies
The adjustable 1.25V to 37V output and 1.5A capability make it ideal for benchtop power supplies and lab equipment.
LED Lighting Drivers
With 80dB PSRR at 120Hz, it provides clean, stable current for high-power LED lighting applications.
Battery Chargers
The adjustable output allows precise voltage settings for charging various battery chemistries, including Li-ion and lead-acid.
Audio Amplifier Power
Its high current capability and low noise make it suitable for powering audio amplifier stages.
Industrial Control Systems
The robust 1.5A output and wide voltage range support industrial actuators and control circuits.
Test and Measurement Equipment
The adjustable output and high PSRR ensure accurate voltage references for calibration instruments.
- Q: What is the output voltage range of the LM317AEMPX/NOPB?
- A: The output voltage is adjustable from 1.25V up to 37V.
- Q: What is the maximum output current?
- A: This regulator can deliver up to 1.5A of output current.
- Q: What is the input voltage range?
- A: The input voltage range is not explicitly provided, but the output can be set up to 37V.
- Q: What is the dropout voltage?
- A: The dropout voltage is not specified in the provided data, but typical LM317 devices have around 2V dropout.
- Q: What is the quiescent current?
- A: The quiescent current is 10 mA, which is typical for high-current adjustable regulators.
- Q: What package is available?
- A: The LM317AEMPX/NOPB is available in a SOT-223-4 package.
- Q: What is the output voltage range of the LM317AEMPX/NOPB?
- A: The output voltage is adjustable from 1.25V up to 37V.
- Q: What is the maximum output current?
- A: This regulator can deliver up to 1.5A of output current.
- Q: What is the input voltage range?
- A: The input voltage range is not explicitly provided, but the output can be set up to 37V.
- Q: What is the dropout voltage?
- A: The dropout voltage is not specified in the provided data, but typical LM317 devices have around 2V dropout.
- Q: What is the quiescent current?
- A: The quiescent current is 10 mA, which is typical for high-current adjustable regulators.
- Q: What package is available?
- A: The LM317AEMPX/NOPB is available in a SOT-223-4 package.

LM317AEMPX/NOPB.pdf