Texas Instruments LM2940IMPX-8.0/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.59 | $1.59 |
| 15+ | $1.54 | $23.10 |
| 25+ | $1.50 | $37.50 |
| 50+ | $1.42 | $71.00 |
| 100+ | $1.25 | $125.00 |
| N+ | $0.25 | 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 ~ 85°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-261-4, TO-261AA |
| Supplier Device Package | SOT-223-4 |
| ROHS |  |
The LM2940IMPX-8.0/NOPB is a fixed 8V low dropout linear regulator capable of delivering 1A of output current. Housed in a compact SOT-223-4 package, it features a dropout voltage of just 1V at full load, making it efficient for battery-powered and automotive applications. With a wide input voltage range and 66dB PSRR at 120Hz, this regulator provides clean, stable power for noise-sensitive circuits. Built-in protection features include thermal shutdown and short-circuit current limiting.
- High Output Current: Delivers up to 1A, suitable for powering multiple components or higher-power loads.
- Low Dropout Voltage: Only 1V at 1A, maximizing efficiency and extending battery life in portable designs.
- Excellent Ripple Rejection: 66dB PSRR at 120Hz ensures clean output for analog and audio circuits.
- Wide Input Range: Accepts inputs up to 26V, providing flexibility for various supply rails.
- Robust Protection: Includes thermal shutdown and short-circuit protection for reliable operation.
Automotive Power Supplies
With a wide input range up to 26V and 1A output, the LM2940IMPX-8.0/NOPB is ideal for powering sensors and microcontrollers in automotive environments where voltage transients are common.
Industrial Control Systems
The 8V fixed output and 66dB PSRR at 120Hz ensure clean, stable power for analog and digital control circuits in industrial equipment, reducing noise-induced errors.
Battery-Powered Devices
Although quiescent current is 10mA, the low dropout of 1V maximizes battery utilization in 9V or 12V battery systems, extending operational life.
Post-Regulation for Switching Supplies
Use after a DC-DC converter to provide a low-noise 8V rail for sensitive audio or RF circuitry, leveraging the high PSRR to attenuate switching ripple.
Telecommunication Equipment
Provides a stable 8V supply for line drivers and interface circuits, with thermal shutdown and short-circuit protection ensuring reliability in 24/7 operation.
Test and Measurement Instruments
The low output noise and precise 8V output make it suitable for reference supplies in benchtop instruments, ensuring measurement accuracy.
- Q: What is the output voltage of the LM2940IMPX-8.0/NOPB?
- A: The fixed output voltage is 8.0V.
- Q: What is the maximum output current?
- A: It can deliver up to 1A of continuous output current.
- Q: What is the input voltage range?
- A: The input voltage must be at least 8V (plus dropout) and can go up to 26V.
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 1V at 1A load.
- Q: What is the quiescent current?
- A: The quiescent current is typically 10 mA.
- Q: What package is available?
- A: It comes in a SOT-223-4 package.
LM2940IMPX-8.0/NOPB.pdf
- Q: What is the output voltage of the LM2940IMPX-8.0/NOPB?
- A: The fixed output voltage is 8.0V.
- Q: What is the maximum output current?
- A: It can deliver up to 1A of continuous output current.
- Q: What is the input voltage range?
- A: The input voltage must be at least 8V (plus dropout) and can go up to 26V.
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 1V at 1A load.
- Q: What is the quiescent current?
- A: The quiescent current is typically 10 mA.
- Q: What package is available?
- A: It comes in a SOT-223-4 package.
