LT1086CM#TRPBF

Product Overview

Category: Voltage Regulator
Use: Provides a regulated output voltage for electronic circuits
Characteristics: High precision, low dropout voltage, adjustable output, current limiting
Package: TO-263-3 (D2PAK)
Essence: Linear voltage regulator
Packaging/Quantity: Tape and reel, 250 units per reel

Specifications

• Input Voltage Range: 1.2V to 20V
• Output Voltage Range: 1.25V to 15V
• Dropout Voltage: 1.5V at 3A load current
• Line Regulation: 0.015% typical
• Load Regulation: 0.1% typical
• Maximum Output Current: 3A
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LT1086CM#TRPBF has three pins:

1. Input (VIN): Connects to the input voltage source.
2. Output (VOUT): Provides the regulated output voltage.
3. Ground (GND): Connected to the ground reference.

Functional Features

• High precision: The LT1086CM#TRPBF provides a highly accurate and stable output voltage.
• Low dropout voltage: It can regulate the output voltage even when the input voltage is close to the desired output voltage.
• Adjustable output: The output voltage can be adjusted within a specified range using external resistors.
• Current limiting: The device incorporates current limiting protection to prevent damage due to excessive load currents.

Advantages and Disadvantages

Advantages: - High precision regulation ensures reliable performance. - Low dropout voltage allows efficient operation with low input voltages. - Adjustable output voltage provides flexibility in various applications. - Current limiting protects the circuit from overloading.

Disadvantages: - The TO-263-3 package may require additional space on the PCB. - Limited maximum output current of 3A may not be suitable for high-power applications.

Working Principles

The LT1086CM#TRPBF is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with a fraction of the output voltage and adjusting the pass transistor accordingly. This feedback mechanism ensures that the output voltage remains stable and within the desired range, even with varying input voltages and load conditions.

Detailed Application Field Plans

The LT1086CM#TRPBF finds applications in various electronic circuits where a regulated voltage supply is required. Some common application fields include:

1. Power Supplies: It can be used in power supply circuits to provide a stable voltage source for microcontrollers, sensors, and other components.
2. Battery-Powered Devices: The low dropout voltage makes it suitable for battery-powered devices, extending the usable battery life.
3. Audio Amplifiers: It can be employed in audio amplifier circuits to ensure a consistent and clean power supply for improved audio quality.
4. Industrial Control Systems: The high precision and current limiting features make it suitable for use in industrial control systems, ensuring reliable operation and protection against overloads.

Detailed and Complete Alternative Models

1. LM317: A popular adjustable linear voltage regulator with similar characteristics and pin configuration.
2. LT1085: Offers higher output current capability (up to 7.5A) while maintaining low dropout voltage.
3. LM7805: Fixed output voltage regulator providing a constant 5V output.

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

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