Texas Instruments LM2940CT-5.0/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.65 | $1.65 |
| 15+ | $1.60 | $24.00 |
| 25+ | $1.57 | $39.25 |
| 50+ | $1.48 | $74.00 |
| 100+ | $1.31 | $131.00 |
| N+ | $0.26 | 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) | 15 mA |
| Current - Supply (Max) | 60 mA |
| PSRR | 72dB (120Hz) |
| Control Features | - |
| Protection Features | Over Temperature, Reverse Polarity, Short Circuit |
| Operating Temperature | 0°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | TO-220-3 |
| Supplier Device Package | TO-220-3 |
| ROHS |  |
The LM2940CT-5.0/NOPB is a low-dropout linear regulator from Texas Instruments, providing a fixed 5V output at up to 1A. Its key feature is a dropout voltage of just 1V, allowing efficient operation from supplies that are only slightly above 5V. The TO-220-3 package ensures good thermal performance.
- Low Dropout Voltage: 1V dropout at 1A enables operation from lower input voltages, improving efficiency.
- Fixed 5V Output: Simple design with no external resistors required.
- High PSRR: 72dB at 120Hz provides good noise rejection for sensitive loads.
- Automotive-Ready: Handles input transients and voltage dips common in automotive environments.
Automotive Power
With a low dropout of 1V, the LM2940CT-5.0/NOPB can regulate 5V from a car battery even during cranking conditions, ensuring stable operation.
Battery-Powered Equipment
Its low dropout allows efficient use of battery capacity, making it ideal for portable devices that need a regulated 5V rail.
Post-Regulation for Switching Supplies
Use it after a DC-DC converter to reduce ripple and noise, providing a clean 5V for sensitive analog circuits.
Industrial Sensors
Power 5V industrial sensors and transmitters with a stable supply, even when the input voltage fluctuates.
Communication Equipment
Provide a clean 5V rail for RF transceivers and communication modules, minimizing interference.
Embedded Systems
Ideal for powering 5V logic and microcontrollers in systems where input voltage may be close to the output voltage.
- Q: What is the fixed output voltage?
- A: The LM2940CT-5.0/NOPB provides a fixed 5V output.
- Q: What is the maximum output current?
- A: It can deliver up to 1A of output current.
- Q: What is the input voltage range?
- A: The input voltage range is from 6V to 26V (absolute max).
- Q: What is the dropout voltage?
- A: The dropout voltage is very low at 1V at 1A load.
- Q: What is the quiescent current?
- A: The quiescent current is typically 15 mA.
- Q: What package is available?
- A: It is available in the TO-220-3 package.
LM2940CT-5.0/NOPB.pdf
- Q: What is the fixed output voltage?
- A: The LM2940CT-5.0/NOPB provides a fixed 5V output.
- Q: What is the maximum output current?
- A: It can deliver up to 1A of output current.
- Q: What is the input voltage range?
- A: The input voltage range is from 6V to 26V (absolute max).
- Q: What is the dropout voltage?
- A: The dropout voltage is very low at 1V at 1A load.
- Q: What is the quiescent current?
- A: The quiescent current is typically 15 mA.
- Q: What package is available?
- A: It is available in the TO-220-3 package.
