Texas Instruments LM2940CSX-15/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $4.32 | $4.32 |
| 15+ | $1.87 | $28.05 |
| 25+ | $1.83 | $45.75 |
| 50+ | $1.73 | $86.50 |
| 100+ | $1.52 | $152.00 |
| N+ | $0.30 | 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) | 15V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.8V @ 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 | 0°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-263-4, D2PAK (3 Leads + Tab), TO-263AA |
| Supplier Device Package | TO-263 (DDPAK-3) |
| ROHS |  |
The LM2940CSX-15/NOPB is a fixed 15V low dropout linear regulator capable of delivering 1A of current. With a dropout voltage of only 0.8V at full load, it efficiently regulates from higher input rails. Its 10 mA quiescent current and 66dB ripple rejection at 120Hz make it a dependable choice for automotive, industrial, and telecom applications. The TO-263 package ensures excellent thermal performance.
- High Output Current: 1A capability supports a wide range of loads.
- Low Dropout: 0.8V at 1A improves efficiency in systems with tight headroom.
- Good Ripple Rejection: 66dB at 120Hz filters AC noise effectively.
- Reliable Package: TO-263 (DDPAK-3) offers robust thermal dissipation.
Automotive Infotainment Systems
The 15V output at 1A is well-suited for powering audio amplifiers, display drivers, and infotainment processors in vehicles.
Industrial Actuator Control
With 66dB PSRR at 120Hz, it provides stable power for industrial actuators and motor controllers that require a clean 15V rail.
Telecom Power Distribution
Ideal for powering line drivers and interface circuits in telecom equipment where a regulated 15V supply is needed.
Test and Measurement Instruments
Its low dropout and good ripple rejection make it suitable for bench power supplies and precision instruments requiring a stable 15V reference.
LED Lighting Drivers
Provides a constant 15V supply for LED strips and lighting controllers, ensuring consistent brightness and performance.
- Q: What is the output voltage of the LM2940CSX-15/NOPB?
- A: The fixed output voltage is 15V.
- 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 must be at least 0.8V above the output for proper regulation.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.8V at 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-263 (DDPAK-3) package.
LM2940CSX-15/NOPB.pdf
- Q: What is the output voltage of the LM2940CSX-15/NOPB?
- A: The fixed output voltage is 15V.
- 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 must be at least 0.8V above the output for proper regulation.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.8V at 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-263 (DDPAK-3) package.
