LT3083IT#40PBF

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low Dropout, Adjustable Output Voltage, High Current Capability
• Package: TO-220
• Essence: Linear Regulator
• Packaging/Quantity: Tube/25 pieces

Specifications

• Input Voltage Range: 1.2V to 36V
• Output Voltage Range: 0.6V to 34.5V
• Dropout Voltage: 350mV at 1.5A Load Current
• Maximum Output Current: 1.5A
• Line Regulation: 0.015% typical
• Load Regulation: 0.1% typical
• Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LT3083IT#40PBF has three pins:

1. IN: Input voltage pin.
2. ADJ: Adjust pin for setting the output voltage.
3. OUT: Output voltage pin.

Functional Features

• Low dropout voltage: The LT3083IT#40PBF exhibits a low dropout voltage of only 350mV at a load current of 1.5A, allowing it to regulate voltage efficiently even when the input voltage is close to the desired output voltage.
• Adjustable output voltage: The ADJ pin allows users to set the desired output voltage within the specified range of 0.6V to 34.5V, providing flexibility in various applications.
• High current capability: With a maximum output current of 1.5A, the LT3083IT#40PBF can handle high current loads without sacrificing voltage regulation performance.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient voltage regulation. - Adjustable output voltage provides flexibility. - High current capability allows for handling demanding loads.

Disadvantages: - Limited output current compared to some other voltage regulators. - Requires external components for stability and protection.

Working Principles

The LT3083IT#40PBF is a linear regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage obtained from the voltage divider connected to the ADJ pin. The pass transistor adjusts its resistance to maintain the desired output voltage, compensating for changes in load and input voltage.

Detailed Application Field Plans

The LT3083IT#40PBF finds applications in various fields, including:

1. Power supplies: It can be used as a voltage regulator in power supply circuits to provide stable and regulated voltage to sensitive electronic components.
2. Automotive electronics: The LT3083IT#40PBF's wide temperature range makes it suitable for automotive applications where temperature fluctuations are common.
3. Industrial control systems: It can be utilized in industrial control systems to ensure precise and reliable voltage regulation for critical components.

Detailed and Complete Alternative Models

Some alternative models to the LT3083IT#40PBF include:

1. LM317: A popular adjustable linear voltage regulator with similar characteristics.
2. LT1084: Another low dropout voltage regulator capable of handling higher currents.
3. LM7805: A fixed-output voltage regulator commonly used for 5V applications.

These alternative models offer different specifications and features, allowing users to choose the most suitable option for their specific requirements.

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