LM217D2T-TR

Product Overview

Category

LM217D2T-TR belongs to the category of voltage regulators.

Use

It is commonly used to regulate and control the output voltage in electronic circuits.

Characteristics

• LM217D2T-TR 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.
• The device is designed to provide a stable and reliable output voltage.

Package

LM217D2T-TR comes in a TO-220 package, which is a widely used through-hole package for power devices.

Essence

The essence of LM217D2T-TR lies in its ability to regulate and stabilize the output voltage, ensuring proper functioning of electronic circuits.

Packaging/Quantity

LM217D2T-TR is typically available in reels or tubes, containing a specific quantity of units per package. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Input Voltage Range: 4.2V to 40V
• Output Voltage Range: 1.2V to 37V
• Maximum Output Current: 1.5A
• Dropout Voltage: 2.5V (typical)
• Line Regulation: 0.01%/V
• Load Regulation: 0.1%
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

LM217D2T-TR 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

• LM217D2T-TR provides a stable output voltage regardless of input voltage fluctuations.
• It offers protection against overcurrent and thermal overload.
• The device has built-in short-circuit protection.
• It exhibits low dropout voltage, minimizing power dissipation.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for versatile applications.
• High output current capability enables it to power various electronic components.
• Excellent line and load regulation ensure accurate voltage control.
• Built-in protection features enhance reliability and safety.

Disadvantages

• Linear voltage regulators like LM217D2T-TR dissipate excess power as heat, reducing efficiency compared to switching regulators.
• Dropout voltage can limit the usable input voltage range in certain applications.

Working Principles

LM217D2T-TR operates based on the principle of linear regulation. It uses a pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. By maintaining a constant voltage difference, it compensates for variations in the input voltage and provides a stable output voltage.

Detailed Application Field Plans

LM217D2T-TR finds applications in various fields, including:

1. Power supply circuits: It is commonly used to provide regulated power to microcontrollers, sensors, and other electronic components.
2. Automotive electronics: LM217D2T-TR can be employed in automotive systems to regulate voltages for various subsystems.
3. Industrial control systems: It is suitable for regulating voltages in industrial automation and control systems.
4. Audio amplifiers: LM217D2T-TR can be utilized to stabilize the power supply voltage in audio amplifier circuits.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to LM217D2T-TR include:

1. LM317T: A widely used adjustable linear voltage regulator with similar specifications.
2. LM1117: A low dropout voltage regulator suitable for low-power applications.
3. LT1085: A high-current linear voltage regulator capable of delivering up to 3A.

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

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