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LD2981ABU18TR
Product Overview
Category
LD2981ABU18TR belongs to the category of voltage regulators.
Use
It is commonly used to regulate and stabilize voltage in electronic circuits.
Characteristics
- Low dropout voltage
- High output voltage accuracy
- Low quiescent current
- Thermal shutdown protection
- Short-circuit current limit
Package
LD2981ABU18TR is available in a small surface-mount SOT-23 package.
Essence
The essence of LD2981ABU18TR lies in its ability to provide stable and regulated voltage output for various electronic applications.
Packaging/Quantity
LD2981ABU18TR is typically packaged in reels, with each reel containing a specific quantity of units. The exact packaging and quantity may vary depending on the manufacturer.
Specifications
- Input Voltage Range: 2.5V to 16V
- Output Voltage: 1.8V
- Dropout Voltage: 300mV at 100mA
- Quiescent Current: 50µA
- Maximum Output Current: 100mA
- Operating Temperature Range: -40°C to +125°C
Detailed Pin Configuration
LD2981ABU18TR has three pins:
- VIN (Input Voltage): This pin is connected to the input voltage source.
- VOUT (Output Voltage): This pin provides the regulated output voltage.
- GND (Ground): This pin is connected to the ground reference.
Functional Features
- Low Dropout Voltage: LD2981ABU18TR exhibits a low dropout voltage, ensuring efficient regulation even when the input voltage is close to the desired output voltage.
- High Output Voltage Accuracy: It offers high precision in maintaining the desired output voltage, resulting in reliable performance.
- Low Quiescent Current: LD2981ABU18TR consumes minimal current when in standby mode, conserving power and extending battery life.
- Thermal Shutdown Protection: The regulator includes built-in thermal shutdown protection, preventing damage due to excessive heat.
- Short-Circuit Current Limit: LD2981ABU18TR has a short-circuit current limit feature that protects the device from potential damage during a short circuit event.
Advantages and Disadvantages
Advantages
- Provides stable and regulated voltage output.
- Low dropout voltage ensures efficient regulation.
- High output voltage accuracy for reliable performance.
- Low quiescent current consumption for power efficiency.
- Thermal shutdown protection prevents overheating.
- Short-circuit current limit protects the device.
Disadvantages
- Limited maximum output current of 100mA.
- Input voltage range is restricted to 2.5V to 16V.
Working Principles
LD2981ABU18TR operates based on the principle of linear voltage regulation. It utilizes a pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. This allows it to maintain a constant output voltage despite variations in the input voltage or load conditions.
Detailed Application Field Plans
LD2981ABU18TR finds applications in various electronic devices and systems, including but not limited to: - Battery-powered devices - Portable consumer electronics - Industrial control systems - Automotive electronics - Medical equipment - Communication devices
Detailed and Complete Alternative Models
Some alternative models that can be considered as alternatives to LD2981ABU18TR include: - LM1117-1.8 - LT1761-1.8 - MCP1701-1802E/TO - NCP1117ST18T3G
These models offer similar functionality and specifications, providing options for different design requirements.
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Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van LD2981ABU18TR in technische oplossingen
Sure! Here are 10 common questions and answers related to the application of LD2981ABU18TR in technical solutions:
Q1: What is LD2981ABU18TR? A1: LD2981ABU18TR is a low dropout voltage regulator IC that provides a fixed output voltage of 1.8V.
Q2: What is the input voltage range for LD2981ABU18TR? A2: The input voltage range for LD2981ABU18TR is typically between 2.5V and 16V.
Q3: What is the maximum output current LD2981ABU18TR can handle? A3: LD2981ABU18TR can handle a maximum output current of 100mA.
Q4: Is LD2981ABU18TR suitable for battery-powered applications? A4: Yes, LD2981ABU18TR is suitable for battery-powered applications due to its low dropout voltage and low quiescent current.
Q5: Can LD2981ABU18TR be used in automotive applications? A5: Yes, LD2981ABU18TR is designed to meet automotive requirements and can be used in automotive applications.
Q6: Does LD2981ABU18TR have built-in thermal protection? A6: Yes, LD2981ABU18TR has built-in thermal shutdown protection to prevent overheating.
Q7: Can LD2981ABU18TR operate in a wide temperature range? A7: Yes, LD2981ABU18TR can operate in a temperature range of -40°C to +125°C.
Q8: What is the dropout voltage of LD2981ABU18TR? A8: The typical dropout voltage of LD2981ABU18TR is 200mV at 100mA load.
Q9: Does LD2981ABU18TR require any external components for operation? A9: Yes, LD2981ABU18TR requires input and output capacitors for stability and proper operation.
Q10: Is LD2981ABU18TR available in a surface mount package? A10: Yes, LD2981ABU18TR is available in a surface mount SOT-23 package.
Please note that these answers are general and may vary depending on the specific application and requirements. It is always recommended to refer to the datasheet and consult the manufacturer for detailed information.