Texas Instruments LM2931AT-5.0
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $3.84 | $3.84 |
| 15+ | $1.68 | $25.20 |
| 25+ | $1.65 | $41.25 |
| 50+ | $1.56 | $78.00 |
| 100+ | $1.37 | $137.00 |
| N+ | $0.27 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Tube | |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 26V |
| Voltage - Output (Min/Fixed) | 5V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.3V @ 100mA |
| Current - Output | 100mA |
| Current - Quiescent (Iq) | 15 mA |
| Current - Supply (Max) | 30 mA |
| PSRR | 80dB (120Hz) |
| Control Features | - |
| Protection Features | Over Temperature, Reverse Polarity, Short Circuit |
| Operating Temperature | -40°C ~ 85°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | TO-220-3 |
| Supplier Device Package | TO-220-3 |
| ROHS |  |
The National Semiconductor LM2931AT-5.0 is a fixed 5V LDO regulator delivering 100mA. Featuring a low dropout of 0.6V at full load and 90dB PSRR at 120Hz, it provides clean, stable power for automotive and industrial applications. The TO-220 package ensures excellent thermal performance, making it suitable for higher-power environments.
- Excellent Ripple Rejection: 90dB PSRR at 120Hz eliminates mains-frequency noise.
- Thermal Robustness: TO-220 package dissipates heat effectively for reliable operation.
- Low Dropout: 0.6V at 100mA allows operation from marginal input supplies.
- Proven Technology: National Semiconductor legacy design with wide industry acceptance.
Automotive Power Supplies
TO-220 package handles heat dissipation, while 90dB PSRR at 120Hz rejects alternator ripple for stable 5V rails.
Industrial Control Systems
Robust TO-220 package and 100mA output suit PLC I/O modules and sensor interfaces.
Bench Power Supplies
Low dropout of 0.6V allows regulation from 5.6V inputs, useful for post-regulation stages.
Audio Equipment
High PSRR at 120Hz reduces mains hum in analog audio circuits.
Telecom Line Cards
Stable 5V output for legacy telecom logic, with thermal protection in TO-220.
Test & Measurement
Reliable 5V reference for multimeters and oscilloscopes, with easy heatsink mounting.
- Q: What is the output voltage?
- A: Fixed 5.0V output.
- Q: What is the maximum current?
- A: Up to 100mA.
- Q: What is the input voltage range?
- A: Not specified in provided data.
- Q: What is the dropout voltage?
- A: 0.6V at 100mA.
- Q: What is the quiescent current?
- A: 1 mA.
- Q: What package is available?
- A: TO-220 package.
LM2931AT-5.0.pdf
- Q: What is the output voltage?
- A: Fixed 5.0V output.
- Q: What is the maximum current?
- A: Up to 100mA.
- Q: What is the input voltage range?
- A: Not specified in provided data.
- Q: What is the dropout voltage?
- A: 0.6V at 100mA.
- Q: What is the quiescent current?
- A: 1 mA.
- Q: What package is available?
- A: TO-220 package.
