Texas Instruments LM2940T-12.0/NOPB
| 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) | 12V |
| 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 | Through Hole |
| Package / Case | TO-220-3 |
| Supplier Device Package | TO-220-3 |
| ROHS |  |
The Texas Instruments LM2940T-12.0 is a 1A low dropout regulator with a fixed 12V output. Featuring a dropout voltage of just 1V at full load, it is ideal for automotive and industrial applications. The 10 mA quiescent current and 66dB ripple rejection ensure efficient, clean power delivery. Its TO-220 package provides excellent thermal management.
- Precise 12V Output: Delivers a stable 12V rail, perfect for legacy systems and standard industrial voltages.
- Low Dropout: 1V dropout at 1A enables operation from a 13V supply, reducing power dissipation.
- High Ripple Rejection: 66dB at 120Hz filters noise, ensuring clean power for audio and RF circuits.
- Robust Design: TO-220 package supports high ambient temperatures with proper heatsinking.
Automotive Infotainment
Provides a stable 12V rail for audio amplifiers and display panels, with 66dB PSRR at 120Hz reducing alternator whine.
Industrial Actuators
Powers 12V relays and solenoid valves in factory automation, ensuring reliable switching with a clean supply.
LED Lighting Systems
Regulates 12V for LED strips and drivers, maintaining consistent brightness and color accuracy.
Test & Measurement
Supplies a precise 12V reference for bench instruments, benefiting from low dropout and stable output.
Telecom Equipment
Used in base stations to power RF modules, where the 1A capacity and low noise are critical.
- Q: What is the output voltage?
- A: The fixed output voltage is 12.0V.
- 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 is 12V (typical). Refer to the datasheet for the full range.
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 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 comes in a TO-220-3 package.
LM2940T-12.0/NOPB.pdf
- Q: What is the output voltage?
- A: The fixed output voltage is 12.0V.
- 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 is 12V (typical). Refer to the datasheet for the full range.
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 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 comes in a TO-220-3 package.
