Texas Instruments LM2940T-5.0/LF08
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.68 | $1.68 |
| 15+ | $1.63 | $24.45 |
| 25+ | $1.59 | $39.75 |
| 50+ | $1.50 | $75.00 |
| 100+ | $1.33 | $133.00 |
| 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) | 1V @ 1A |
| Current - Output | 1A |
| Current - Quiescent (Iq) | 10 mA |
| Current - Supply (Max) | 15 mA |
| PSRR | 64dB (120Hz) |
| Control Features | - |
| Protection Features | Over Current, Over Temperature, Reverse Polarity, Short Circuit |
| Operating Temperature | -40°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-220-3 Formed Leads |
| Supplier Device Package | TO-220-3 |
| ROHS |  |
The Texas Instruments LM2940T-5.0/LF08 is a fixed 5V low dropout regulator delivering up to 1A. With a dropout voltage of 1V and 64dB PSRR at 120Hz, it is designed for automotive and industrial applications. The TO-220 package ensures excellent thermal dissipation.
- Thermal Robustness: TO-220 package dissipates heat efficiently for 1A continuous operation.
- Ripple Rejection: 64dB PSRR at 120Hz minimizes mains hum in audio and instrumentation.
- Simple Design: Fixed 5V output requires no external resistors.
- Wide Availability: Industry-standard pinout and package.
Automotive Power Supplies
The TO-220 package with a 1V dropout at 1A is well-suited for 12V battery rails, providing a stable 5V for ECUs and sensors.
Industrial Logic Systems
With 64dB PSRR at 120Hz, it effectively filters rectified AC ripple, making it ideal for 5V logic in industrial controllers.
Bench Power Supplies
Its robust 1A output and through-hole package make it a reliable choice for hobbyist and educational power supply designs.
Audio Equipment
The low noise at line frequency (120Hz) ensures clean power for analog audio circuits, reducing hum.
Telecom Line Cards
Provides a stable 5V rail for line drivers and codecs, with the thermal performance of TO-220 for continuous operation.
Test & Measurement
Precise 5V output with 1A capability supports reference voltages and sensor excitation in benchtop instruments.
- Q: What is the output voltage?
- A: The fixed output voltage is 5.0V.
- Q: What is the maximum output current?
- A: It can supply up to 1A of load current.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; refer to the datasheet.
- Q: What is the dropout voltage?
- A: The dropout voltage is 1V at a 1A load.
- Q: What is the quiescent current?
- A: The quiescent current is 10 mA.
- Q: What package is available?
- A: It is available in a TO-220-3 package.
LM2940T-5.0/LF08.pdf
- Q: What is the output voltage?
- A: The fixed output voltage is 5.0V.
- Q: What is the maximum output current?
- A: It can supply up to 1A of load current.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; refer to the datasheet.
- Q: What is the dropout voltage?
- A: The dropout voltage is 1V at a 1A load.
- Q: What is the quiescent current?
- A: The quiescent current is 10 mA.
- Q: What package is available?
- A: It is available in a TO-220-3 package.
