LT3082EST

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low Dropout Voltage - Adjustable Output Voltage - High Current Capability - Thermal Overload Protection - Reverse Battery Protection

Package: TO-220

Essence: The LT3082EST is a high-performance voltage regulator IC designed for use in various electronic applications. It provides a stable and adjustable output voltage with low dropout, making it suitable for powering sensitive components.

Packaging/Quantity: The LT3082EST is available in a TO-220 package and is typically sold in reels or tubes containing multiple units.

Specifications

• Input Voltage Range: 1.2V to 36V
• Output Voltage Range: 0.6V to 32V
• Dropout Voltage: 350mV at 1A Load
• Maximum Output Current: 2.1A
• Line Regulation: 0.02% typical
• Load Regulation: 0.04% typical
• Quiescent Current: 60µA
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The LT3082EST has the following pin configuration:

```

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| | --| Vout |-- --| ADJ |-- --| Vin |-- --| GND |-- |_______| ```

• Vout: Output Voltage
• ADJ: Adjust Pin (used to set the desired output voltage)
• Vin: Input Voltage
• GND: Ground

Functional Features

• Low Dropout Voltage: The LT3082EST exhibits a low dropout voltage, allowing it to regulate the output voltage even when the input voltage is close to the desired output voltage.
• Adjustable Output Voltage: The ADJ pin enables the user to set the desired output voltage within a wide range, providing flexibility in various applications.
• High Current Capability: With a maximum output current of 2.1A, the LT3082EST can power a wide range of electronic components and circuits.
• Thermal Overload Protection: The IC incorporates thermal overload protection, preventing damage due to excessive heat.
• Reverse Battery Protection: The LT3082EST is designed to withstand reverse polarity connection, ensuring the safety of the circuit.

Advantages and Disadvantages

Advantages: - Wide input voltage range - Adjustable output voltage - Low dropout voltage - High current capability - Thermal overload protection - Reverse battery protection

Disadvantages: - Relatively high quiescent current compared to some other voltage regulators - Limited availability in certain package options

Working Principles

The LT3082EST operates as a linear voltage regulator. It uses a pass transistor to regulate the output voltage based on the difference between the input and desired output voltage. The ADJ pin allows the user to set the desired output voltage by adjusting the reference voltage. The IC also includes internal circuitry for thermal overload protection and reverse battery protection.

Detailed Application Field Plans

The LT3082EST can be used in various applications, including but not limited to: - Power supply modules - Battery-powered devices - Audio amplifiers - LED lighting systems - Industrial control systems - Automotive electronics

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LT3082EST include: - LM317: Adjustable Voltage Regulator - LM1117: Low Dropout Voltage Regulator - LT1084: Adjustable Linear Regulator - LM7805: Fixed Voltage Regulator (5V) - LT1763: Low Noise LDO Regulator

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

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