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LD1117V25C
Product Overview
Category
The LD1117V25C belongs to the category of voltage regulators.
Use
It is commonly used to regulate and stabilize voltage in electronic circuits.
Characteristics
- Low dropout voltage
- Output current up to 800 mA
- Adjustable output voltage
- Thermal overload protection
- Short-circuit protection
Package
The LD1117V25C comes in a TO-220 package, which is a widely used through-hole package for power semiconductors.
Essence
The essence of LD1117V25C lies in its ability to provide a stable and regulated output voltage despite fluctuations in input voltage or load conditions.
Packaging/Quantity
The LD1117V25C is typically packaged in reels or tubes, with quantities varying depending on the manufacturer's specifications.
Specifications
- Input Voltage Range: 4.2 V to 15 V
- Output Voltage: 2.5 V
- Dropout Voltage: 1.2 V (typical)
- Output Current: Up to 800 mA
- Line Regulation: ±0.2% (typical)
- Load Regulation: ±0.4% (typical)
- Operating Temperature Range: -40°C to +125°C
Detailed Pin Configuration
The LD1117V25C has three pins:
- Input (VIN): This pin is connected to the input voltage source.
- Ground (GND): This pin is connected to the ground reference.
- Output (VOUT): This pin provides the regulated output voltage.
Functional Features
- Low Dropout Voltage: The LD1117V25C exhibits a low dropout voltage, allowing it to operate efficiently even when the input voltage is close to the desired output voltage.
- Adjustable Output Voltage: The output voltage can be adjusted using external resistors, providing flexibility in various applications.
- Thermal Overload Protection: The regulator incorporates thermal overload protection, preventing damage due to excessive heat.
- Short-Circuit Protection: The LD1117V25C is equipped with short-circuit protection, safeguarding the circuit from potential damage.
Advantages and Disadvantages
Advantages
- High output current capability
- Wide input voltage range
- Low dropout voltage
- Adjustable output voltage
Disadvantages
- Limited output voltage options (fixed at 2.5 V)
- Relatively high quiescent current
Working Principles
The LD1117V25C operates based on the principle of linear voltage regulation. It uses 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
The LD1117V25C finds applications in various electronic systems, including but not limited to: - Battery-powered devices - Embedded systems - Industrial control systems - Automotive electronics - Power supplies
Detailed and Complete Alternative Models
Some alternative models that can be considered as alternatives to LD1117V25C are: - LM1117-2.5 - LT1117-2.5 - L78M05CDT
These models offer similar functionality and characteristics, providing alternatives for different design requirements.
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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LD1117V25C v technických řešeních
Sure! Here are 10 common questions and answers related to the application of LD1117V25C in technical solutions:
Q: What is LD1117V25C? A: LD1117V25C is a low-dropout voltage regulator IC that provides a fixed output voltage of 2.5V.
Q: What is the maximum input voltage for LD1117V25C? A: The maximum input voltage for LD1117V25C is typically around 15V, but it can handle up to 20V in some cases.
Q: What is the dropout voltage of LD1117V25C? A: The dropout voltage of LD1117V25C is typically around 1.2V at a load current of 800mA.
Q: Can LD1117V25C be used to regulate higher voltages? A: No, LD1117V25C is specifically designed to regulate voltages down to 2.5V. It cannot be used to regulate higher voltages.
Q: What is the maximum output current of LD1117V25C? A: The maximum output current of LD1117V25C is 800mA. It is important not to exceed this limit to ensure proper operation.
Q: Is LD1117V25C suitable for battery-powered applications? A: Yes, LD1117V25C is commonly used in battery-powered applications due to its low dropout voltage and low quiescent current.
Q: Does LD1117V25C require any external components for operation? A: Yes, LD1117V25C requires an input capacitor and an output capacitor for stability. The values of these capacitors depend on the application.
Q: Can LD1117V25C handle short-circuit conditions? A: Yes, LD1117V25C has built-in protection features that allow it to handle short-circuit conditions without damage.
Q: Is LD1117V25C suitable for high-temperature environments? A: LD1117V25C has a maximum operating temperature of 125°C, making it suitable for most standard temperature applications.
Q: Can LD1117V25C be used in parallel to increase the output current? A: No, LD1117V25C is not designed to be used in parallel. Using multiple regulators in parallel can lead to stability issues and should be avoided.
Please note that these answers are general guidelines and it's always recommended to refer to the manufacturer's datasheet and application notes for specific details and considerations.