National Semiconductor LM2940CS-9.0/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $5.04 | $5.04 |
| 15+ | $1.16 | $17.40 |
| 25+ | $1.13 | $28.25 |
| 50+ | $1.07 | $53.50 |
| 100+ | $0.95 | $95.00 |
| N+ | $0.19 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | National Semiconductor |
| Product Series | |
| Packaging | Bulk | |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 26V |
| Voltage - Output (Min/Fixed) | 9V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.8V @ 1A |
| Current - Output | 1A |
| Current - Quiescent (Iq) | 10 mA |
| Current - Supply (Max) | 15 mA |
| PSRR | 64dB (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 LM2940CS-9.0/NOPB is a fixed 9V low dropout linear regulator capable of delivering 1A. It features a low dropout voltage of 0.8V and excellent ripple rejection, making it suitable for automotive and industrial applications. The TO-263 (DDPAK-3) package ensures efficient heat dissipation.
- High Ripple Rejection: 64dB PSRR at 120Hz ensures clean output for audio and precision circuits.
- 1A Output Current: Supports a wide range of loads from sensors to audio amplifiers.
- Low Dropout: 0.8V dropout maximizes efficiency in battery-powered systems.
- Robust Package: TO-263 package provides excellent thermal performance for high-power applications.
Automotive Audio Systems
Provides a stable 9V supply for car radios and amplifiers, with 64dB PSRR at 120Hz to filter alternator noise.
Industrial Control Systems
Powers 9V logic and sensor circuits in industrial automation, ensuring reliable operation in noisy environments.
Battery-Powered Equipment
Low dropout of 0.8V allows efficient use of 12V battery supplies, extending operational life.
Telecommunication Equipment
Provides a clean 9V rail for line drivers and interface circuits in telecom infrastructure.
Test and Measurement Instruments
Delivers stable 9V for analog measurement circuits, maintaining accuracy and precision.
Consumer Electronics
Ideal for 9V-powered devices like guitar pedals, mixers, and other audio equipment.
- Q: What is the output voltage?
- A: The fixed output voltage is 9.0V.
- Q: What is the maximum output current?
- A: It can provide up to 1A of output current.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; refer to the datasheet.
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 0.8V at 1A load.
- Q: What is the quiescent current?
- A: The quiescent current is 10mA.
- Q: What package is available?
- A: It is available in a TO-263 (DDPAK-3) package.
LM2940CS-9.0/NOPB.pdf
- Q: What is the output voltage?
- A: The fixed output voltage is 9.0V.
- Q: What is the maximum output current?
- A: It can provide up to 1A of output current.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; refer to the datasheet.
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 0.8V at 1A load.
- Q: What is the quiescent current?
- A: The quiescent current is 10mA.
- Q: What package is available?
- A: It is available in a TO-263 (DDPAK-3) package.
