Overview
The Texas Instruments LMV431AIM5 is a low-voltage, adjustable precision shunt regulator. This component is part of the LMV431 family, which includes the LMV431, LMV431A, and LMV431B. The LMV431AIM5 is designed for applications requiring precise voltage regulation at low voltages, with an adjustable range from 1.24V to 30V. It is packaged in a SOT-23-5 package, making it suitable for space-constrained designs. The device is temperature compensated and offers low operation current, low output impedance, and fast turn-on response, making it versatile for various electronic systems.
Key Specifications
| Parameter | Description | Value | Unit |
|---|---|---|---|
| Manufacturer | Texas Instruments | ||
| Part Number | LMV431AIM5 | ||
| Package | SOT-23-5 | ||
| Operating Temperature Range | Industrial | -40 to 85 | °C |
| Cathode Voltage Range | 1.24V to 30V | V | |
| Cathode Current Range | 0.1 to 15 | mA | |
| Reference Input Current | -0.05 to 3 | mA | |
| Dynamic Output Impedance | 0.25 to 0.4 | Ω | |
| Low Operation Current | 55 µA | µA | |
| RoHS Compliance | Yes |
Key Features
- Low-Voltage Operation: Adjustable from 1.24V to 30V, making it suitable for low-voltage applications.
- Precision Regulation: Initial tolerances of 1.5%, 1%, and 0.5% for different versions of the LMV431 family.
- Temperature Compensation: Ensures stable operation over a wide temperature range, with a temperature coefficient of 39 PPM/°C for the LMV431AI.
- Low Operation Current: Operates with a low current of 55 µA, reducing power consumption.
- Low Output Impedance: Dynamic output impedance of 0.25 to 0.4 Ω, ensuring minimal voltage drop.
- Fast Turn-On Response: Quickly stabilizes the output voltage, making it suitable for dynamic applications.
- Low Cost: Offers competitive pricing while maintaining high performance.
Applications
- Shunt Regulator: Can be used as a shunt regulator to regulate voltage levels in various circuits.
- Series Regulator: Suitable for use in series regulator configurations to provide stable output voltages.
- Current Source or Sink: Can be configured to act as a current source or sink for various applications.
- Voltage Monitor: Can be used to monitor voltage levels in electronic systems.
- Error Amplifier: Often used as an error amplifier in switching regulators and other feedback circuits.
- 3-V Off-Line Switching Regulator: Can be part of a 3V off-line switching regulator design.
- Low Dropout N-Channel Series Regulator: Suitable for low dropout regulator designs.
Q & A
- What is the operating temperature range of the LMV431AIM5?
The operating temperature range is -40°C to 85°C for the industrial version.
- What is the adjustable voltage range of the LMV431AIM5?
The voltage can be adjusted from 1.24V to 30V.
- What is the typical operation current of the LMV431AIM5?
The typical operation current is 55 µA.
- Is the LMV431AIM5 RoHS compliant?
Yes, the LMV431AIM5 is RoHS compliant.
- What is the dynamic output impedance of the LMV431AIM5?
The dynamic output impedance is between 0.25 Ω and 0.4 Ω.
- What are some common applications of the LMV431AIM5?
Common applications include shunt regulators, series regulators, current sources or sinks, voltage monitors, and error amplifiers in switching regulators.
- What package type is the LMV431AIM5 available in?
The LMV431AIM5 is available in a SOT-23-5 package.
- How does the LMV431AIM5 handle capacitive loads?
The device is stable with capacitive loads greater than 10 nF and less than 50 pF.
- What is the initial tolerance of the LMV431AIM5?
The initial tolerance can vary depending on the version, but for the LMV431AI, it is 1%.
- Can the LMV431AIM5 be used in safety-critical applications?
It is important to refer to the datasheet and consult with Texas Instruments for specific guidelines on using the LMV431AIM5 in safety-critical applications.
