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LD1117S18CTR
Product Overview
Category
The LD1117S18CTR belongs to the category of voltage regulators.
Use
It is primarily used for regulating voltage in electronic circuits.
Characteristics
- Low dropout voltage
- Output current up to 800 mA
- Adjustable output voltage
- Thermal overload protection
- Short-circuit current limiting
Package
The LD1117S18CTR comes in a small surface-mount package.
Essence
The essence of LD1117S18CTR lies in its ability to provide stable and regulated voltage output in various electronic applications.
Packaging/Quantity
The LD1117S18CTR is typically packaged in reels and is available in quantities of 2500 units per reel.
Specifications
- Input Voltage Range: 4.2V to 15V
- Output Voltage Range: 1.8V
- Dropout Voltage: 1.2V (typical)
- Output Current: Up to 800mA
- Line Regulation: ±0.2% (typical)
- Load Regulation: ±0.4% (typical)
- Operating Temperature Range: -40°C to +125°C
Detailed Pin Configuration
The LD1117S18CTR 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 ensures efficient regulation even with small input-output voltage differentials.
- Adjustable output voltage allows flexibility in various applications.
- Thermal overload protection prevents damage due to excessive heat.
- Short-circuit current limiting protects the regulator and the connected circuitry.
Advantages and Disadvantages
Advantages
- High output current capability
- Wide input voltage range
- Excellent line and load regulation
- Compact surface-mount package
Disadvantages
- Limited output voltage options (only 1.8V)
- Higher dropout voltage compared to some other regulators
Working Principles
The LD1117S18CTR is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage and adjusting the pass transistor accordingly to maintain a stable output voltage.
Detailed Application Field Plans
The LD1117S18CTR finds applications in various electronic devices and systems, including: - Power supplies - Battery-powered devices - Embedded systems - Consumer electronics - Industrial control systems
Detailed and Complete Alternative Models
Some alternative models that can be considered as alternatives to LD1117S18CTR are: - LM317T - LT1085CT - LDO50V
These models offer similar functionality and characteristics, providing options for different voltage requirements and current capabilities.
In conclusion, the LD1117S18CTR is a versatile voltage regulator with excellent performance characteristics. Its compact size, adjustable output voltage, and thermal protection make it suitable for a wide range of electronic applications. However, its limited output voltage options and higher dropout voltage may be considered as disadvantages in certain scenarios.
Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LD1117S18CTR v technických řešeních
Sure! Here are 10 common questions and answers related to the application of LD1117S18CTR in technical solutions:
Q: What is LD1117S18CTR? A: LD1117S18CTR is a low dropout voltage regulator that provides a fixed output voltage of 1.8V.
Q: What is the maximum input voltage for LD1117S18CTR? A: The maximum input voltage for LD1117S18CTR is typically 15V.
Q: What is the dropout voltage of LD1117S18CTR? A: The dropout voltage of LD1117S18CTR is typically 1.2V at 800mA load current.
Q: Can LD1117S18CTR handle high currents? A: Yes, LD1117S18CTR can handle a maximum output current of 800mA.
Q: Is LD1117S18CTR suitable for battery-powered applications? A: Yes, LD1117S18CTR is suitable for battery-powered applications as it has a low quiescent current of typically 5mA.
Q: Does LD1117S18CTR require any external components for operation? A: Yes, LD1117S18CTR requires an input capacitor and an output capacitor for stability.
Q: Can LD1117S18CTR be used in automotive applications? A: Yes, LD1117S18CTR is designed to meet automotive requirements and can be used in automotive applications.
Q: What is the thermal resistance of LD1117S18CTR? A: The thermal resistance of LD1117S18CTR is typically 50°C/W.
Q: Can LD1117S18CTR operate in a wide temperature range? A: Yes, LD1117S18CTR can operate in a temperature range of -40°C to +125°C.
Q: Is LD1117S18CTR available in different package options? A: Yes, LD1117S18CTR is available in a surface mount SOT-223 package.
Please note that the answers provided here are general and may vary depending on the specific datasheet and manufacturer's specifications for LD1117S18CTR.