Texas Instruments LM2940IMPX-12/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 | Cut Tape (CT) | Tape & Reel (TR) |
| 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 ~ 85°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-261-4, TO-261AA |
| Supplier Device Package | SOT-223-4 |
| ROHS |  |
The LM2940IMPX-12/NOPB from Texas Instruments is a fixed 12V LDO regulator supporting 1A. With 1V dropout and 66dB PSRR, it delivers clean power for automotive and industrial systems. The SOT-223-4 package balances size and thermal performance.
- High PSRR: 66dB at 120Hz filters mains and alternator noise.
- 1A Output: Supports moderate loads without heatsink complexity.
- Low Dropout: 1V at full load works with 13.8V automotive rails.
- Surface-Mount Package: SOT-223-4 enables automated assembly.
Automotive Audio
Provides a clean 12V rail for car radios, with 66dB PSRR at 120Hz rejecting alternator whine.
Industrial Actuators
Regulates 12V for solenoid drivers, with 1A capacity for reliable switching.
Telecom Base Stations
Powers line drivers with stable 12V, ensuring signal integrity over long cables.
LED Display Panels
Supplies 12V to LED matrix drivers, with low dropout from 13.8V automotive supplies.
Test Equipment
Delivers precise 12V to analog front-ends, with 66dB noise rejection for accurate measurements.
Security Cameras
Provides regulated 12V to IR illuminators and camera modules, ensuring consistent performance.
- Q: What is the output voltage?
- A: The fixed output is 12V.
- Q: What is the maximum current?
- A: It can deliver up to 1A.
- Q: What is the input voltage range?
- A: The input voltage is 12V (typical). Check datasheet for full range.
- Q: What is the dropout voltage?
- A: Dropout is 1V at 1A load.
- Q: What is the quiescent current?
- A: Quiescent current is 10mA.
- Q: What package is available?
- A: It comes in a SOT-223-4 package.
LM2940IMPX-12/NOPB.pdf
- Q: What is the output voltage?
- A: The fixed output is 12V.
- Q: What is the maximum current?
- A: It can deliver up to 1A.
- Q: What is the input voltage range?
- A: The input voltage is 12V (typical). Check datasheet for full range.
- Q: What is the dropout voltage?
- A: Dropout is 1V at 1A load.
- Q: What is the quiescent current?
- A: Quiescent current is 10mA.
- Q: What package is available?
- A: It comes in a SOT-223-4 package.
