Texas Instruments LM2940LD-12/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $2.00 | $2.00 |
| 15+ | $1.94 | $29.10 |
| 25+ | $1.90 | $47.50 |
| 50+ | $1.79 | $89.50 |
| 100+ | $1.58 | $158.00 |
| N+ | $0.32 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Cut Tape (CT) | |
| Output Configuration | Active |
| Output Type | Positive |
| Number of Regulators | Fixed |
| 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 | Surface Mount |
| Package / Case | 8-WDFN Exposed Pad |
| Supplier Device Package | 8-WSON (4x4) |
| ROHS |  |
The LM2940LD-12 from Texas Instruments is a fixed-output LDO regulator delivering 1A at a stable 12V. With an input range up to 26V and a dropout voltage of just 1V, it is well-suited for automotive and industrial applications. The 8-WSON package offers a compact footprint, while 66dB PSRR ensures clean power by rejecting mains-frequency ripple.
- High Output Current: Delivers up to 1A, making it suitable for powering higher-current loads like audio amplifiers and industrial sensors.
- Excellent Ripple Rejection: 66dB PSRR at 120Hz effectively filters AC ripple, providing a clean, stable output for sensitive electronics.
- Wide Input Compatibility: Accepts inputs from 12V to 26V, offering flexibility across various automotive and industrial power rails.
- Compact Thermal Package: The 8-WSON (4x4mm) package dissipates heat efficiently while saving PCB space.
Automotive Infotainment Systems
The LM2940LD-12's 1A output and 12V fixed voltage make it ideal for powering car audio amplifiers and display panels, providing a stable supply from a 14V vehicle battery.
Industrial Control Panels
With a wide input range up to 26V, this regulator delivers a clean 12V rail to PLCs and motor controllers, ensuring reliable operation in factory automation.
Telecom Base Stations
The high 66dB PSRR at 120Hz effectively filters rectified AC ripple, providing a clean 12V supply to RF transceivers and baseband processors.
LED Lighting Drivers
For high-power LED strips requiring 12V, this LDO offers a simple, low-noise solution, reducing flicker and ensuring consistent brightness.
Test and Measurement Equipment
The stable 12V output with 1A capability powers precision op-amps and ADC reference circuits in benchtop instruments, improving measurement accuracy.
Security Camera Systems
In CCTV systems, the LM2940LD-12 provides a regulated 12V supply to cameras and IR illuminators, ensuring consistent performance over long cable runs.
- Q: What is the output voltage of the LM2940LD-12?
- A: This is a fixed-output LDO providing a regulated 12V output.
- 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 range is from 12V up to 26V, making it suitable for automotive and industrial supplies.
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 1V at a 1A load, allowing regulation with moderate headroom.
- Q: What is the quiescent current?
- A: The quiescent current is 10mA, which is acceptable for higher-power applications.
- Q: What package is available?
- A: It is available in an 8-WSON (4x4mm) package, offering a compact solution with good thermal performance.
LM2940LD-12/NOPB.pdf
- Q: What is the output voltage of the LM2940LD-12?
- A: This is a fixed-output LDO providing a regulated 12V output.
- 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 range is from 12V up to 26V, making it suitable for automotive and industrial supplies.
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 1V at a 1A load, allowing regulation with moderate headroom.
- Q: What is the quiescent current?
- A: The quiescent current is 10mA, which is acceptable for higher-power applications.
- Q: What package is available?
- A: It is available in an 8-WSON (4x4mm) package, offering a compact solution with good thermal performance.
