Texas Instruments LM317MDTX/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.22 | $1.22 |
| 15+ | $1.18 | $17.70 |
| 25+ | $1.15 | $28.75 |
| 50+ | $1.09 | $54.50 |
| 100+ | $0.96 | $96.00 |
| N+ | $0.19 | 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 | 500mA |
| 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 (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-252-3, DPAK (2 Leads + Tab), SC-63 |
| Supplier Device Package | TO-252-3 |
| ROHS |  |
The LM317MDTX/NOPB is an adjustable linear voltage regulator from Texas Instruments, offering output from 1.25V to 37V with up to 500mA current. Housed in a TO-252-3 package, it features excellent PSRR of 80dB at 120Hz and low output noise. Its adjustable nature makes it a versatile choice for power supplies, chargers, and audio circuits. Built-in current limiting and thermal protection ensure safe operation.
- Adjustable Output: 1.25V to 37V range provides design flexibility for multiple applications.
- High PSRR: 80dB at 120Hz ensures clean output for audio and precision circuits.
- Compact Package: TO-252-3 (DPAK) saves board space while allowing moderate heat dissipation.
- Robust Protection: Internal current limiting and thermal shutdown prevent failure under overload.
Adjustable Bench Power Supply
The LM317MDTX/NOPB allows precise voltage adjustment from 1.25V to 37V, making it perfect for hobbyist and lab power supplies.
Battery Charger with Voltage Control
Set the output to the required charging voltage (e.g., 4.2V for Li-ion) with two resistors, providing a simple charger solution.
Audio Preamplifier Bias
With 80dB PSRR at 120Hz, it delivers clean, adjustable bias voltage for tube or op-amp preamps.
Solar Panel MPPT Reference
Use it to create a stable reference voltage for maximum power point tracking circuits in small solar chargers.
Variable Fan Speed Controller
Adjust the output voltage to control DC fan speed smoothly, with 500mA capacity for most fans.
Precision Current Limiter
Configure as a constant current source for LED testing or battery discharging applications.
- Q: What is the output voltage range of the LM317MDTX/NOPB?
- A: It is adjustable from 1.25V up to 37V.
- Q: What is the maximum output current?
- A: It can provide up to 500mA of output current.
- Q: What is the input voltage range?
- A: The input voltage can range from 1.25V above the output up to 40V maximum.
- Q: What is the quiescent current?
- A: Quiescent current is typically 10 mA.
- Q: What is the PSRR?
- A: PSRR is 80dB at 120Hz, decreasing to 65dB at higher frequencies.
- Q: What package is available?
- A: It comes in a TO-252-3 (DPAK) package.
LM317MDTX/NOPB.pdf
- Q: What is the output voltage range of the LM317MDTX/NOPB?
- A: It is adjustable from 1.25V up to 37V.
- Q: What is the maximum output current?
- A: It can provide up to 500mA of output current.
- Q: What is the input voltage range?
- A: The input voltage can range from 1.25V above the output up to 40V maximum.
- Q: What is the quiescent current?
- A: Quiescent current is typically 10 mA.
- Q: What is the PSRR?
- A: PSRR is 80dB at 120Hz, decreasing to 65dB at higher frequencies.
- Q: What package is available?
- A: It comes in a TO-252-3 (DPAK) package.
