Overview
The LM2990T-15/NOPB is a versatile low-dropout (LDO) voltage regulator manufactured by Texas Instruments. This regulator is designed for applications requiring high output current and high accuracy. It is available in a convenient TO-220 package, which allows for easy installation and placement on a heatsink for enhanced thermal regulation. The LM2990T-15/NOPB is suitable for a wide range of applications, including automotive systems, portable devices, industrial equipment, battery chargers, and voltage converters.
Key Specifications
| Parameter | Value |
|---|---|
| Package | TO-220-3 |
| Output Current (Max) | 1 A |
| Input Voltage Range | -26 V to -6 V |
| Fixed Output Voltages | -5 V, -12 V, -15 V |
| Output Voltage Accuracy | ±5% over entire operating range |
| Dropout Voltage (Typical) | 0.6 V at 1-A load |
| Quiescent Current (Typical) | 1 mA |
| Thermal Shutdown Protection | With hysteresis |
| Operating Temperature Range | -40°C to 125°C |
| Noise (µVrms) | 250 |
| PSRR at 100 KHz (dB) | 23 |
| Load Capacitance (Min) | 10 µF |
Key Features
- Wide input voltage range: -26 V to -6 V.
- Fixed output voltages: -5 V, -12 V, and -15 V.
- High accuracy: ±5% output voltage over the entire operating range.
- High current capability: up to 1 A output current.
- Low dropout voltage: typically 0.6 V at 1-A load.
- Low quiescent current: suitable for battery-powered applications.
- Internal protection features: short-circuit current limit and thermal shutdown with hysteresis.
Applications
The LM2990T-15/NOPB is widely used in various applications, including:
- Automotive electronics
- Portable devices
- Industrial equipment
- Battery-powered systems
- Voltage converters and chargers
Q & A
- What is the LM2990T-15/NOPB used for? The LM2990T-15/NOPB is a low-dropout voltage regulator used in applications requiring high output current and high accuracy, such as automotive systems, portable devices, and industrial equipment.
- What is the package type of the LM2990T-15/NOPB? The LM2990T-15/NOPB comes in a TO-220-3 package.
- What are the fixed output voltages of the LM2990T-15/NOPB? The fixed output voltages are -5 V, -12 V, and -15 V.
- What is the maximum output current of the LM2990T-15/NOPB? The maximum output current is 1 A.
- What is the dropout voltage of the LM2990T-15/NOPB? The dropout voltage is typically 0.6 V at a 1-A load.
- Does the LM2990T-15/NOPB have thermal shutdown protection? Yes, it has thermal shutdown protection with hysteresis.
- What is the operating temperature range of the LM2990T-15/NOPB? The operating temperature range is -40°C to 125°C.
- What are some common applications of the LM2990T-15/NOPB? Common applications include automotive electronics, portable devices, industrial equipment, battery-powered systems, and voltage converters.
- Who manufactures the LM2990T-15/NOPB? The LM2990T-15/NOPB is manufactured by Texas Instruments.
- What is the quiescent current of the LM2990T-15/NOPB? The quiescent current is typically 1 mA.
