National Semiconductor LM2990SX-5.0/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $7.40 | $7.40 |
| 15+ | $1.70 | $25.50 |
| 25+ | $1.67 | $41.75 |
| 50+ | $1.57 | $78.50 |
| 100+ | $1.39 | $139.00 |
| N+ | $0.28 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | National Semiconductor |
| Product Series | |
| Packaging | Bulk | |
| Output Configuration | Negative |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | -26V |
| Voltage - Output (Min/Fixed) | -5V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 1V @ 1A |
| Current - Output | 1.8A |
| Current - Quiescent (Iq) | 1 mA |
| Current - Supply (Max) | 5 mA |
| PSRR | 58dB (1kHz) |
| Control Features | - |
| Protection Features | Over Temperature, Short Circuit |
| Operating Temperature | -40°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 LM2990SX-5.0/NOPB is a negative low dropout regulator providing a fixed -5V output. It supports up to 1.8A of load current with a dropout voltage of 1V. Housed in a TO-263 package, it is designed for applications requiring a robust negative power supply.
- High Current Negative Rail: Delivers up to 1.8A, suitable for demanding analog and digital loads.
- Low Dropout: 1V dropout at 1A improves efficiency in negative supply designs.
- Low Quiescent Current: 1mA quiescent current minimizes power consumption.
- Robust Package: TO-263 (DDPAK-3) offers excellent thermal performance for high-power applications.
Negative Rail for Op-Amps
The LM2990SX-5.0/NOPB provides a clean -5V rail, essential for powering operational amplifiers in audio and instrumentation circuits that require dual-supply operation.
Bipolar ADC/DAC Supplies
Use it to generate the negative supply for high-precision analog-to-digital converters, ensuring accurate bipolar signal processing.
Telecom Line Drivers
In telecom equipment, a stable -5V rail is needed for line drivers and interface circuits; this regulator delivers the required current with low noise.
Industrial Control Systems
Power negative logic rails and analog circuits in PLCs and motor controllers, benefiting from the 1.8A current capability.
Audio Equipment
Provides a low-noise negative supply for audio preamplifiers and headphone amplifiers, improving dynamic range and reducing distortion.
- Q: What is the output voltage of the LM2990SX-5.0/NOPB?
- A: It provides a fixed -5V output.
- Q: What is the maximum output current?
- A: It can deliver up to 1.8A 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 for negative input voltage limits.
- Q: What is the dropout voltage?
- A: The dropout voltage is 1V at 1A load.
- Q: What is the quiescent current?
- A: The quiescent current is 1 mA.
- Q: What package is available?
- A: It is available in a TO-263 (DDPAK-3) package.
LM2990SX-5.0/NOPB.pdf
- Q: What is the output voltage of the LM2990SX-5.0/NOPB?
- A: It provides a fixed -5V output.
- Q: What is the maximum output current?
- A: It can deliver up to 1.8A 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 for negative input voltage limits.
- Q: What is the dropout voltage?
- A: The dropout voltage is 1V at 1A load.
- Q: What is the quiescent current?
- A: The quiescent current is 1 mA.
- Q: What package is available?
- A: It is available in a TO-263 (DDPAK-3) package.
