LM217T-DG

Product Overview

Category

LM217T-DG belongs to the category of voltage regulators.

Use

It is primarily used for regulating and stabilizing voltage in electronic circuits.

Characteristics

• LM217T-DG is a linear voltage regulator.
• It operates with an input voltage range of 4.2V to 40V.
• The output voltage can be adjusted from 1.2V to 37V.
• It has a maximum output current of 1.5A.
• LM217T-DG offers excellent line and load regulation.
• It provides thermal shutdown protection.

Package

The LM217T-DG comes in a TO-220 package, which is a widely used through-hole package for power semiconductors.

Essence

The essence of LM217T-DG lies in its ability to regulate and stabilize voltage, ensuring a consistent power supply to electronic devices.

Packaging/Quantity

LM217T-DG is typically available in reels or tubes, containing a quantity of 50 units per reel/tube.

Specifications

• Input Voltage Range: 4.2V to 40V
• Output Voltage Range: 1.2V to 37V
• Maximum Output Current: 1.5A
• Line Regulation: 0.01%/V
• Load Regulation: 0.3%
• Dropout Voltage: 2.5V
• Thermal Shutdown Protection: Yes

Detailed Pin Configuration

LM217T-DG has three pins:

1. Vin (Pin 1): This pin is used to connect the input voltage.
2. Vout (Pin 2): This pin provides the regulated output voltage.
3. GND (Pin 3): This pin is connected to the ground reference.

Functional Features

• LM217T-DG provides a stable output voltage regardless of input voltage fluctuations.
• It offers excellent line and load regulation, ensuring consistent performance.
• The thermal shutdown protection prevents the device from overheating.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for versatile applications.
• Adjustable output voltage provides flexibility in various circuit designs.
• Excellent line and load regulation ensure stable performance.
• Thermal shutdown protection enhances safety and reliability.

Disadvantages

• Dropout voltage of 2.5V may limit its use in low voltage applications.
• Maximum output current of 1.5A may not be sufficient for high-power circuits.

Working Principles

LM217T-DG operates on the principle of linear voltage regulation. It uses a pass transistor to regulate the output voltage based on the difference between the input and desired output voltage. By adjusting the resistance within the regulator, the output voltage can be set to the desired level.

Detailed Application Field Plans

LM217T-DG finds applications in various electronic devices and systems, including:

1. Power supplies: LM217T-DG is commonly used in power supply circuits to provide regulated voltage to other components.
2. Audio amplifiers: It can be utilized in audio amplifier circuits to stabilize the voltage supply and improve audio quality.
3. Battery charging circuits: LM217T-DG helps regulate the charging voltage in battery charging circuits, preventing overcharging or undercharging.
4. Automotive electronics: It is suitable for automotive applications where stable voltage regulation is crucial for proper functioning of electronic systems.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to LM217T-DG include:

1. LM317T: This is a popular alternative with similar specifications and pin configuration.
2. LM1117: Another widely used alternative with adjustable output voltage and comparable characteristics.
3. LT1083: A high-current alternative with adjustable output voltage and low dropout voltage.

These alternative models can be considered based on specific requirements and availability.

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