Texas Instruments LM2940T-10.0/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) | 10V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 1V @ 1A |
| Current - Output | 1A |
| Current - Quiescent (Iq) | 10 mA |
| Current - Supply (Max) | 15 mA |
| PSRR | 63dB (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 LM2940T-10.0/NOPB is a fixed 10V low dropout regulator in a TO-220-3 package, delivering up to 1A. Its low dropout voltage of 1V at full load enables efficient operation from 12V rails. The through-hole package is easy to heatsink for higher power dissipation. With 63dB PSRR and robust protection features, it is a reliable choice for industrial and automotive power regulation.
- TO-220 Package: Excellent thermal performance with standard heatsink mounting, ideal for high-current applications.
- Low Dropout (1V @ 1A): Operates efficiently with minimal headroom, reducing power loss.
- 1A Output Current: Suitable for a wide range of loads including motors and actuators.
- High PSRR (63dB): Filters ripple from switching supplies and AC mains.
- Robust Protection: Includes thermal shutdown and short-circuit current limiting.
Bench Power Supplies
The TO-220 package with a heatsink can dissipate power efficiently, making it suitable for benchtop variable supplies requiring a stable 10V rail.
Motor Control Circuits
1A output can drive gate driver ICs and small relays in motor control boards, while the low dropout ensures operation from a 12V battery even when it sags.
HVAC Control Systems
In HVAC thermostats and controllers, the 10V output powers valve actuators and sensors, with PSRR filtering noise from the 24VAC transformer.
Test and Measurement Equipment
Provides a clean 10V reference for calibration circuits and ADC references, thanks to its low noise and high PSRR.
LED Lighting Drivers
For constant-voltage LED strips requiring 10V, this regulator offers a simple solution with thermal protection for reliable operation.
Robotics Power Distribution
In hobby and industrial robots, it regulates 12V down to 10V for servos and logic boards, with the TO-220 package allowing easy mounting on chassis.
- Q: What is the output voltage?
- A: Fixed 10V output.
- Q: What is the maximum current?
- A: 1A continuous output current.
- Q: What is the input voltage range?
- A: Minimum 11V (10V + 1V dropout), maximum 26V.
- Q: What is the dropout voltage?
- A: Typically 1V at 1A load.
- Q: What is the quiescent current?
- A: Typically 10mA.
- Q: What package is this?
- A: TO-220-3 through-hole package.
LM2940T-10.0/NOPB.pdf
- Q: What is the output voltage?
- A: Fixed 10V output.
- Q: What is the maximum current?
- A: 1A continuous output current.
- Q: What is the input voltage range?
- A: Minimum 11V (10V + 1V dropout), maximum 26V.
- Q: What is the dropout voltage?
- A: Typically 1V at 1A load.
- Q: What is the quiescent current?
- A: Typically 10mA.
- Q: What package is this?
- A: TO-220-3 through-hole package.
