Texas Instruments LM317MDCYR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.55 | $0.55 |
| 15+ | $0.53 | $7.95 |
| 25+ | $0.52 | $13.00 |
| 50+ | $0.49 | $24.50 |
| 100+ | $0.44 | $44.00 |
| N+ | $0.09 | 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 | 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 | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-261-4, TO-261AA |
| Supplier Device Package | SOT-223-4 |
| ROHS |
The LM317MDCYR from Texas Instruments is a versatile adjustable linear regulator with an output range from 1.25V to 37V, capable of delivering up to 500mA. Its high PSRR of 80dB at 120Hz ensures excellent noise rejection. The SOT-223-4 package is compact yet thermally efficient, making it suitable for a wide range of adjustable power supply applications.
- Adjustable Output (1.25V-37V): Maximum flexibility for various voltage requirements.
- High PSRR (80dB): Superior noise filtering for sensitive analog circuits.
- 500mA Output Current: Suitable for many medium-power applications.
- Compact SOT-223-4 Package: Saves space while providing adequate thermal performance.
Variable Bench Power Supply
Adjustable 1.25V to 37V output makes it ideal for DIY lab power supplies.
Battery Charger
Set precise charging voltages for various battery chemistries (Li-ion, Lead-acid).
Audio Amplifier Bias
Provides a clean, adjustable supply for op-amp circuits, with high PSRR (80dB).
FPGA and DSP Core Voltage
Adjustable output allows fine-tuning core voltages for different processors.
Solar Charge Controllers
Regulates variable solar panel output to a stable voltage for battery charging.
Precision Reference
Used as a programmable voltage reference in calibration equipment.
- Q: What is the output voltage of the LM317MDCYR?
- A: The output voltage is adjustable from 1.25V up to 37V.
- Q: What is the maximum output current?
- A: It can deliver up to 500mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is up to 40V (absolute maximum).
- Q: What is the dropout voltage?
- A: Dropout voltage is not specified in the provided data; typically around 2V for this series.
- Q: What is the quiescent current?
- A: The quiescent current is 10 mA.
- Q: What package is available?
- A: It comes in a SOT-223-4 package.
- Q: What is the output voltage of the LM317MDCYR?
- A: The output voltage is adjustable from 1.25V up to 37V.
- Q: What is the maximum output current?
- A: It can deliver up to 500mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is up to 40V (absolute maximum).
- Q: What is the dropout voltage?
- A: Dropout voltage is not specified in the provided data; typically around 2V for this series.
- Q: What is the quiescent current?
- A: The quiescent current is 10 mA.
- Q: What package is available?
- A: It comes in a SOT-223-4 package.

LM317MDCYR.pdf