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LD2982AM31R
Product Overview
Category
The LD2982AM31R belongs to the category of voltage regulators.
Use
It is primarily used for regulating voltage in electronic circuits.
Characteristics
- Low dropout voltage
- Low quiescent current
- High output voltage accuracy
- Thermal shutdown protection
- Short-circuit current limit
Package
The LD2982AM31R comes in a small surface-mount package.
Essence
The essence of LD2982AM31R lies in its ability to provide stable and regulated voltage output.
Packaging/Quantity
The LD2982AM31R is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.
Specifications
- Input Voltage Range: 2.5V - 16V
- Output Voltage: 3.1V
- Dropout Voltage: 300mV @ 100mA
- Quiescent Current: 50µA
- Output Current: 100mA
- Operating Temperature Range: -40°C to +125°C
Detailed Pin Configuration
The LD2982AM31R has three pins:
- VIN (Input Voltage)
- GND (Ground)
- VOUT (Output Voltage)
Functional Features
- Voltage regulation: The LD2982AM31R ensures a constant output voltage regardless of input variations.
- Low dropout voltage: It maintains a stable output even when the input voltage is close to the desired output voltage.
- Thermal shutdown protection: The regulator shuts down if the temperature exceeds a safe operating limit.
- Short-circuit current limit: It protects the circuit by limiting the current in case of a short circuit.
Advantages and Disadvantages
Advantages
- Low dropout voltage enables efficient power conversion.
- High output voltage accuracy ensures precise voltage regulation.
- Thermal shutdown protection prevents damage due to excessive heat.
- Small package size allows for space-saving designs.
Disadvantages
- Limited output current of 100mA may not be sufficient for high-power applications.
- Input voltage range is restricted to 2.5V - 16V, limiting its compatibility with certain systems.
Working Principles
The LD2982AM31R operates based on the principle of a linear voltage regulator. It uses a pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. This ensures that the output voltage remains constant despite fluctuations in the input voltage.
Detailed Application Field Plans
The LD2982AM31R finds applications in various electronic devices and circuits, including but not limited to: - Battery-powered devices - Portable electronics - IoT devices - Automotive electronics - Industrial control systems
Detailed and Complete Alternative Models
Some alternative models that can be considered as alternatives to LD2982AM31R are: - LM1117-3.3: A popular 3.3V linear voltage regulator with similar characteristics. - LT1761-3.3: A low dropout 3.3V regulator with higher output current capability. - MCP1703-3.3: Another 3.3V linear regulator known for its low quiescent current.
These alternative models offer similar functionality and can be used as substitutes depending on specific requirements.
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Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van LD2982AM31R in technische oplossingen
Sure! Here are 10 common questions and answers related to the application of LD2982AM31R in technical solutions:
Q: What is LD2982AM31R? A: LD2982AM31R is a low-dropout voltage regulator IC that provides a stable output voltage for various electronic applications.
Q: What is the input voltage range of LD2982AM31R? A: The input voltage range of LD2982AM31R is typically between 2.5V and 16V.
Q: What is the output voltage of LD2982AM31R? A: The output voltage of LD2982AM31R is fixed at 3.1V.
Q: What is the maximum output current of LD2982AM31R? A: LD2982AM31R can provide a maximum output current of 50mA.
Q: Is LD2982AM31R suitable for battery-powered applications? A: Yes, LD2982AM31R is suitable for battery-powered applications as it has a low dropout voltage and low quiescent current.
Q: Does LD2982AM31R have built-in thermal protection? A: Yes, LD2982AM31R has built-in thermal protection that prevents overheating and ensures safe operation.
Q: Can LD2982AM31R be used in automotive applications? A: Yes, LD2982AM31R is designed to meet automotive requirements and can be used in automotive applications.
Q: What is the operating temperature range of LD2982AM31R? A: The operating temperature range of LD2982AM31R is typically between -40°C and +125°C.
Q: Does LD2982AM31R require external capacitors for stability? A: Yes, LD2982AM31R requires an input and output capacitor for stability. The datasheet provides guidelines for selecting suitable capacitors.
Q: Can LD2982AM31R be used in low-power microcontroller applications? A: Yes, LD2982AM31R is commonly used in low-power microcontroller applications where a stable 3.1V supply voltage is required.
Please note that these answers are general and may vary depending on the specific application and requirements. It's always recommended to refer to the datasheet and consult with the manufacturer for detailed information.