LT1085IT#PBF

Product Overview

Category

LT1085IT#PBF belongs to the category of voltage regulators.

Use

The LT1085IT#PBF is primarily used for regulating voltage in electronic circuits.

Characteristics

• High accuracy and low dropout voltage
• Adjustable output voltage
• Current limiting and thermal shutdown protection
• Fast transient response

Package

The LT1085IT#PBF comes in a TO-220 package.

Essence

The essence of LT1085IT#PBF lies in its ability to provide stable and regulated voltage to electronic devices.

Packaging/Quantity

The LT1085IT#PBF is typically packaged in reels or tubes, with quantities varying based on customer requirements.

Specifications

• Input Voltage Range: 3.6V to 20V
• Output Voltage Range: 1.2V to 18V
• Output Current: Up to 3A
• Dropout Voltage: 1.2V (typical)
• Line Regulation: 0.015% (typical)
• Load Regulation: 0.1% (typical)
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LT1085IT#PBF has three pins:

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

Functional Features

• Adjustable output voltage through the ADJ pin.
• Current limiting feature protects against excessive current draw.
• Thermal shutdown protection prevents overheating.
• Fast transient response ensures stability during load changes.

Advantages and Disadvantages

Advantages

• High accuracy and low dropout voltage ensure precise regulation.
• Adjustable output voltage allows flexibility in various applications.
• Current limiting and thermal shutdown protection enhance device safety.
• Fast transient response ensures stability during dynamic load conditions.

Disadvantages

• Limited output current capacity compared to some other voltage regulators.
• Higher cost compared to basic linear regulators.

Working Principles

The LT1085IT#PBF is a three-terminal adjustable voltage regulator. It uses a reference voltage and feedback mechanism to maintain a stable output voltage. The input voltage is regulated by controlling the pass transistor, which adjusts the voltage drop across it to achieve the desired output voltage.

Detailed Application Field Plans

The LT1085IT#PBF finds applications in various electronic systems, including:

1. Power supplies for microcontrollers and digital circuits.
2. Battery charging circuits.
3. Audio amplifiers and preamplifiers.
4. Industrial control systems.
5. Automotive electronics.

Detailed and Complete Alternative Models

Some alternative models to LT1085IT#PBF include:

1. LM317T: Adjustable voltage regulator with similar features.
2. LM7805: Fixed 5V voltage regulator.
3. LT1084CT: Adjustable voltage regulator with higher output current capacity.

These alternative models offer different specifications and may be suitable for specific application requirements.

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