Texas Instruments LM2940CSX-5.0/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.93 | $1.93 |
| 15+ | $1.87 | $28.05 |
| 25+ | $1.83 | $45.75 |
| 50+ | $1.73 | $86.50 |
| 100+ | $1.52 | $152.00 |
| N+ | $0.30 | 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 | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 26V |
| Voltage - Output (Min/Fixed) | 5V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.8V @ 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 | 0°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-263-4, D2PAK (3 Leads + Tab), TO-263AA |
| Supplier Device Package | TO-263 (DDPAK-3) |
| ROHS |  |
The LM2940CSX-5.0/NOPB from Texas Instruments is a robust 5V low dropout linear regulator capable of delivering 1A of output current. Featuring a dropout voltage of 0.8V at full load and a PSRR of 64dB at 120Hz, it provides clean and stable power for a variety of applications. The TO-263 package ensures excellent thermal performance.
- High Output Current: Delivers up to 1A, making it suitable for powering a wide range of digital and analog circuits.
- Excellent Ripple Rejection: With 64dB PSRR at 120Hz, it effectively filters out mains-frequency ripple, ideal for audio and precision instrumentation.
- Robust Thermal Performance: The TO-263 package is designed to dissipate heat efficiently, ensuring reliable operation at high currents.
- Proven Reliability: As a long-standing TI product, it has a track record of reliability in automotive and industrial applications.
Automotive Audio Systems
The LM2940CSX-5.0/NOPB is well-suited for powering car audio head units and amplifiers, providing a stable 5V rail for audio DSPs and microcontrollers. Its 1A output capability handles peak current demands, while the 64dB PSRR at 120Hz minimizes alternator whine.
Industrial Control Systems
In PLCs and industrial sensors, this regulator provides a robust 5V supply for logic circuits and interface ICs. The TO-263 package allows for efficient heat dissipation in demanding environments.
Telecommunications Equipment
For networking switches and routers, the LM2940CSX-5.0/NOPB offers a reliable 5V rail for line drivers and control logic, ensuring stable operation under varying load conditions.
Battery-Powered Test Equipment
Portable multimeters and oscilloscopes can benefit from this LDO's ability to deliver 1A, powering high-performance analog front-ends and displays with a clean 5V supply.
Power Supply for Microcontroller Boards
This regulator is an excellent choice for powering 5V microcontroller boards and peripheral modules in hobbyist and industrial projects, offering high current capability and thermal robustness.
- Q: What is the output voltage of the LM2940CSX-5.0/NOPB?
- A: The fixed output voltage is 5.0V.
- 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 not specified in the provided data; please refer to the datasheet.
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 0.8V at 1A load, allowing operation with a moderate input-to-output differential.
- Q: What is the quiescent current?
- A: The quiescent current is 10 mA, which is higher than some newer LDOs but acceptable for higher-current applications.
- Q: What package is this LDO available in?
- A: It comes in the TO-263 (DDPAK-3) surface-mount package, suitable for power dissipation.
LM2940CSX-5.0/NOPB.pdf
- Q: What is the output voltage of the LM2940CSX-5.0/NOPB?
- A: The fixed output voltage is 5.0V.
- 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 not specified in the provided data; please refer to the datasheet.
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 0.8V at 1A load, allowing operation with a moderate input-to-output differential.
- Q: What is the quiescent current?
- A: The quiescent current is 10 mA, which is higher than some newer LDOs but acceptable for higher-current applications.
- Q: What package is this LDO available in?
- A: It comes in the TO-263 (DDPAK-3) surface-mount package, suitable for power dissipation.
