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ALD1117SAL
Product Overview
Category
The ALD1117SAL belongs to the category of low dropout linear regulators.
Use
It is used to regulate voltage in various electronic devices and circuits.
Characteristics
- Low dropout voltage
- High output current capability
- Thermal overload protection
- Short circuit current limiting
- Fast transient response
Package
The ALD1117SAL comes in a standard TO-252 package.
Essence
The essence of the ALD1117SAL lies in its ability to provide stable and regulated voltage output for electronic applications.
Packaging/Quantity
It is typically available in reels with quantities varying based on manufacturer specifications.
Specifications
- Input Voltage Range: 4.2V to 15V
- Output Voltage Range: 1.25V to 13.8V
- Maximum Output Current: 1A
- Dropout Voltage: 1.3V at 800mA
- Operating Temperature Range: -40°C to 125°C
Detailed Pin Configuration
The ALD1117SAL has three pins: 1. Input (VIN) 2. Ground (GND) 3. Output (VOUT)
Functional Features
- Low dropout voltage
- Stable output voltage
- Overcurrent and thermal protection
- Fast transient response
Advantages and Disadvantages
Advantages
- Low dropout voltage enables efficient regulation
- High output current capability
- Thermal overload protection ensures device safety
Disadvantages
- Limited maximum output current compared to some alternatives
- Higher dropout voltage compared to newer regulator models
Working Principles
The ALD1117SAL operates by comparing the reference voltage with the divided down output voltage to generate an error signal, which is then used to control the pass transistor to maintain a stable output voltage.
Detailed Application Field Plans
The ALD1117SAL is commonly used in: - Battery-powered devices - Portable electronics - Automotive applications - Industrial control systems
Detailed and Complete Alternative Models
Some alternative models to the ALD1117SAL include: - LM1117 - LT1763 - ADP3338
In conclusion, the ALD1117SAL is a reliable low dropout linear regulator that provides stable voltage regulation for various electronic applications. Its key features include low dropout voltage, high output current capability, and thermal overload protection, making it suitable for a wide range of use cases. However, it is important to consider alternative models based on specific application requirements and constraints.
Seznam 10 běžných otázek a odpovědí souvisejících s aplikací ALD1117SAL v technických řešeních
What is ALD1117SAL?
- ALD1117SAL is a low dropout voltage regulator designed to provide a stable output voltage with low quiescent current for various technical applications.
What is the input voltage range for ALD1117SAL?
- The input voltage range for ALD1117SAL is typically 4.75V to 15V.
What is the output voltage range for ALD1117SAL?
- The output voltage range for ALD1117SAL is typically 1.8V to 5V, depending on the specific model.
What is the maximum output current of ALD1117SAL?
- The maximum output current of ALD1117SAL is typically 1A.
What are the typical applications of ALD1117SAL?
- ALD1117SAL is commonly used in battery-powered devices, instrumentation, and other portable electronic equipment where low dropout voltage and low quiescent current are important.
What is the dropout voltage of ALD1117SAL?
- The dropout voltage of ALD1117SAL is typically around 1.1V at full load.
Is ALD1117SAL suitable for automotive applications?
- Yes, ALD1117SAL is often used in automotive electronics due to its reliability and performance under varying temperature and voltage conditions.
Does ALD1117SAL require external capacitors for stability?
- Yes, ALD1117SAL requires input and output capacitors for stability and proper operation.
What are the thermal considerations for using ALD1117SAL?
- It is important to consider the thermal dissipation requirements and use appropriate heat sinking if the regulator is expected to dissipate significant power.
Are there any known issues or limitations when using ALD1117SAL?
- While ALD1117SAL is a reliable regulator, it is important to ensure that the input voltage and current limits are not exceeded to prevent damage to the device. Additionally, attention should be paid to proper PCB layout and thermal management for optimal performance.