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LM217LZ
Product Overview
Belongs to: Voltage Regulator
Category: Electronic Component
Use: LM217LZ is a voltage regulator designed to provide a stable output voltage from an unregulated input voltage source.
Characteristics: It is known for its high precision, low dropout voltage, and thermal shutdown protection.
Package: TO-220
Essence: The LM217LZ is essential for maintaining a constant voltage supply in various electronic circuits.
Packaging/Quantity: Typically available in tubes or reels with varying quantities.
Specifications
- Input Voltage: 4.2V to 40V
- Output Voltage: 1.2V to 37V
- Output Current: Up to 1.5A
- Dropout Voltage: 1.2V
- Operating Temperature Range: -40°C to 125°C
Detailed Pin Configuration
The LM217LZ has three pins: 1. Input (Pin 1): Connects to the unregulated input voltage source. 2. Output (Pin 2): Provides the regulated output voltage. 3. Adjust (Pin 3): Used to set the output voltage when an external resistor divider is connected.
Functional Features
- Precision: Provides a highly accurate and stable output voltage.
- Thermal Shutdown: Protects the regulator from overheating.
- Short Circuit Protection: Safeguards the device from damage in case of a short circuit.
Advantages and Disadvantages
Advantages: - High precision and stability - Wide input voltage range - Thermal shutdown protection
Disadvantages: - Relatively high dropout voltage - Limited maximum output current
Working Principles
The LM217LZ operates by comparing the output voltage to a reference voltage and adjusting the pass transistor to maintain a constant output voltage, regardless of changes in the input voltage or load.
Detailed Application Field Plans
The LM217LZ is commonly used in various applications such as: - Power supplies - Battery chargers - Audio amplifiers - Instrumentation
Detailed and Complete Alternative Models
Some alternative models to LM217LZ include: - LM317 - LM1117 - LM2940
In conclusion, the LM217LZ voltage regulator offers precise and stable voltage regulation, making it an essential component in numerous electronic devices and systems.
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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LM217LZ v technických řešeních
Sure, here are 10 common questions and answers related to the application of LM217LZ:
What is LM217LZ?
- LM217LZ is a voltage regulator integrated circuit (IC) that can be used to regulate the output voltage in various electronic applications.
What is the input voltage range for LM217LZ?
- The input voltage range for LM217LZ is typically between 4.2V and 40V.
What is the output voltage range for LM217LZ?
- The output voltage range for LM217LZ is adjustable from 1.2V to 37V.
What is the maximum output current of LM217LZ?
- The maximum output current of LM217LZ is 1.5A.
How do I adjust the output voltage of LM217LZ?
- The output voltage of LM217LZ can be adjusted using an external resistor divider network connected to the ADJ pin.
What are the typical applications of LM217LZ?
- LM217LZ is commonly used in power supply circuits, battery chargers, and other applications requiring a regulated output voltage.
What are the key features of LM217LZ?
- Some key features of LM217LZ include thermal shutdown, short-circuit protection, and adjustable output voltage.
Can LM217LZ be used in automotive applications?
- Yes, LM217LZ can be used in automotive applications, provided it meets the necessary specifications and requirements.
What are the recommended input and output capacitors for LM217LZ?
- It is recommended to use input and output capacitors to improve stability and transient response. Typically, a 0.33μF capacitor is recommended at the output and a 0.1μF capacitor at the input.
Are there any specific layout considerations for using LM217LZ?
- Proper PCB layout and thermal management are important for optimal performance of LM217LZ. It is recommended to follow the manufacturer's guidelines for layout and heat dissipation.
I hope these questions and answers provide helpful information about the application of LM217LZ in technical solutions. Let me know if you need further assistance!