Texas Instruments LM2940SX-8.0/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $3.76 | $3.76 |
| 15+ | $1.98 | $29.70 |
| 25+ | $1.94 | $48.50 |
| 50+ | $1.83 | $91.50 |
| 100+ | $1.61 | $161.00 |
| N+ | $0.32 | 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) | 8V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 1V @ 1A |
| Current - Output | 1A |
| Current - Quiescent (Iq) | 10 mA |
| Current - Supply (Max) | 15 mA |
| PSRR | 66dB (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-263-4, D2PAK (3 Leads + Tab), TO-263AA |
| Supplier Device Package | TO-263 (DDPAK-3) |
| ROHS |  |
The LM2940SX-8.0/NOPB is a high-current low-dropout regulator providing a fixed 8V output at up to 1A. With a dropout voltage of just 1V at full load and 66dB PSRR at 120Hz, it delivers reliable power for automotive and industrial applications. The TO-263 (DDPAK-3) package offers excellent thermal performance for continuous operation.
- High Output Current: 1A capacity supports demanding loads like relays and amplifiers.
- Low Dropout: 1V at 1A minimizes power loss and heat generation.
- Automotive-Grade Noise Rejection: 66dB PSRR at 120Hz filters alternator ripple effectively.
- Surface-Mount Package: TO-263 enables automated assembly and efficient heat sinking.
Automotive Audio Amplifiers
Provides a stable 8V rail for car audio preamplifiers and head units, with 66dB PSRR at 120Hz rejecting alternator noise.
Industrial Control Systems
Powers 8V logic and sensor interfaces in PLCs and motor controllers, handling up to 1A for multiple actuators.
Telecom Line Drivers
Regulates 8V for line driver ICs in communication equipment, ensuring consistent signal levels over long cable runs.
Battery Charger Circuits
Supplies regulated 8V to charging controllers for 2-cell Li-ion batteries, maintaining safe charging profiles.
Test and Measurement
Provides clean 8V for analog front-ends in oscilloscopes and signal generators, reducing measurement errors.
HVAC Controllers
Powers 8V relay drivers and display circuits in thermostats, with dropout margin for brownout conditions.
- Q: What is the output voltage?
- A: The fixed output voltage is 8.0V.
- Q: What is the maximum output current?
- A: It can deliver up to 1A.
- 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: Dropout voltage is 1V at 1A load.
- Q: What is the quiescent current?
- A: The quiescent current is 10 mA.
- Q: What package is available?
- A: It comes in a TO-263 (DDPAK-3) package.
LM2940SX-8.0/NOPB.pdf
- Q: What is the output voltage?
- A: The fixed output voltage is 8.0V.
- Q: What is the maximum output current?
- A: It can deliver up to 1A.
- 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: Dropout voltage is 1V at 1A load.
- Q: What is the quiescent current?
- A: The quiescent current is 10 mA.
- Q: What package is available?
- A: It comes in a TO-263 (DDPAK-3) package.
