LT1580IQ#TRPBF

Product Overview

Category

The LT1580IQ#TRPBF belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in electronic devices for voltage regulation purposes.

Characteristics

• High precision voltage regulation
• Low dropout voltage
• Wide input voltage range
• Adjustable output voltage
• Current limiting and thermal shutdown protection

Package

The LT1580IQ#TRPBF is available in a compact and industry-standard 5-lead TO-220 package.

Essence

The essence of the LT1580IQ#TRPBF lies in its ability to provide stable and regulated voltage outputs for various electronic applications.

Packaging/Quantity

The IC is typically packaged in reels or tubes, with a quantity of 1000 units per reel/tube.

Specifications

• Input Voltage Range: 2.5V to 40V
• Output Voltage Range: 1.25V to 37V
• Dropout Voltage: 0.45V at 3A load current
• Maximum Output Current: 3A
• Line Regulation: ±0.015% typical
• Load Regulation: ±0.1% typical
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LT1580IQ#TRPBF has five pins arranged as follows:

1. VIN (Input Voltage)
2. GND (Ground)
3. ADJ (Adjustment Pin)
4. VOUT (Output Voltage)
5. NC (No Connection)

Functional Features

• High Precision: The LT1580IQ#TRPBF provides accurate and stable voltage regulation, ensuring reliable performance in various applications.
• Low Dropout Voltage: With a low dropout voltage, this IC can maintain a stable output even when the input voltage is close to the desired output voltage.
• Wide Input Voltage Range: The IC can accept a wide range of input voltages, making it suitable for diverse power supply configurations.
• Adjustable Output Voltage: The output voltage can be easily adjusted using an external resistor, allowing flexibility in system design.
• Current Limiting and Thermal Shutdown Protection: The IC incorporates built-in protection mechanisms to prevent excessive current flow and overheating, enhancing safety and reliability.

Advantages and Disadvantages

Advantages

• High precision voltage regulation ensures accurate and reliable performance.
• Low dropout voltage enables stable operation even with low input-output differentials.
• Wide input voltage range accommodates various power supply configurations.
• Adjustable output voltage provides flexibility in system design.
• Built-in protection features enhance safety and reliability.

Disadvantages

• Limited maximum output current of 3A may not be sufficient for high-power applications.
• TO-220 package may require additional heat sinking for efficient thermal management.

Working Principles

The LT1580IQ#TRPBF operates based on a voltage regulation principle known as a linear regulator. It compares the output voltage to a reference voltage and adjusts the internal circuitry to maintain a constant output voltage regardless of changes in the input voltage or load conditions. This is achieved by controlling the pass transistor's resistance, which regulates the amount of current flowing through it.

Detailed Application Field Plans

The LT1580IQ#TRPBF finds application in various electronic systems that require precise voltage regulation. Some common application fields include:

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

Detailed and Complete Alternative Models

1. LM317T: A widely used adjustable linear voltage regulator with similar specifications and pin configuration.
2. LT1084CP-5: A fixed 5V linear voltage regulator suitable for low-power applications.
3. LM7805: A popular fixed 5V linear voltage regulator with a higher maximum output current of 1A.

These alternative models offer similar functionality and can be considered as substitutes for the LT1580IQ#TRPBF depending on specific application requirements.

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