Linear Technology/Analog Devices
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LT1084CP-5#PBF
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LT1084CP-5#PBF

Product Overview

Category

The LT1084CP-5#PBF belongs to the category of voltage regulators.

Use

It is primarily used for regulating voltage in electronic circuits.

Characteristics

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

Package

The LT1084CP-5#PBF comes in a TO-220 package.

Essence

This product is an integrated circuit (IC) voltage regulator that provides a stable output voltage regardless of input voltage fluctuations.

Packaging/Quantity

The LT1084CP-5#PBF is typically packaged in reels or tubes, with quantities varying depending on the manufacturer's specifications.

Specifications

  • Input Voltage Range: 3.3V to 40V
  • Output Voltage Range: 1.25V to 37V
  • Output Current: Up to 5A
  • Dropout Voltage: 1.5V at 5A
  • Line Regulation: 0.015% typical
  • Load Regulation: 0.1% typical
  • Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LT1084CP-5#PBF has three pins:

  1. IN (Input): This pin is connected to the input voltage source.
  2. ADJ (Adjust): This pin is used to adjust the output voltage.
  3. OUT (Output): This pin provides the regulated output voltage.

Functional Features

  • High Precision: The LT1084CP-5#PBF offers high precision voltage regulation, ensuring accurate and stable output voltage.
  • Low Dropout Voltage: With a low dropout voltage of 1.5V at 5A, this voltage regulator can operate efficiently even when the input voltage is close to the desired output voltage.
  • Current Limiting and Thermal Shutdown Protection: The LT1084CP-5#PBF incorporates current limiting and thermal shutdown protection mechanisms, safeguarding the circuit from excessive current and temperature.
  • Fast Transient Response: This voltage regulator responds quickly to changes in load conditions, maintaining a stable output voltage during dynamic operations.

Advantages and Disadvantages

Advantages

  • High precision voltage regulation
  • Low dropout voltage
  • Current limiting and thermal shutdown protection
  • Fast transient response

Disadvantages

  • Relatively high power dissipation at higher input-output voltage differentials
  • Requires external components for proper operation

Working Principles

The LT1084CP-5#PBF operates based on the principle of linear voltage regulation. It uses a pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. By comparing the output voltage with a reference voltage, the internal control circuitry adjusts the pass transistor to maintain a constant output voltage.

Detailed Application Field Plans

The LT1084CP-5#PBF finds applications in various fields, including:

  1. Power supply circuits: It is commonly used in power supply designs to provide regulated voltages for electronic devices.
  2. Automotive electronics: The LT1084CP-5#PBF can be employed in automotive applications to regulate voltage for various components, such as sensors and actuators.
  3. Industrial automation: It is suitable for use in industrial automation systems where stable and precise voltage regulation is required.
  4. Audio amplifiers: This voltage regulator can be utilized in audio amplifier circuits to ensure consistent power supply voltages, minimizing distortion and noise.

Detailed and Complete Alternative Models

  1. LM317: A popular alternative with similar specifications and adjustable output voltage.
  2. LM7805: Another widely used alternative with fixed 5V output voltage.
  3. LT1083: Similar to the LT1084CP-5#PBF, but with a higher output current capability of up to 7.5A.

These alternative models offer similar functionality and can be considered as substitutes for the LT1084CP-5#PBF in various applications.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LT1084CP-5#PBF v technických řešeních

Sure! Here are 10 common questions and answers related to the application of LT1084CP-5#PBF in technical solutions:

  1. Q: What is the LT1084CP-5#PBF? A: The LT1084CP-5#PBF is a linear voltage regulator IC that provides a fixed output voltage of 5V.

  2. Q: What is the maximum input voltage for the LT1084CP-5#PBF? A: The maximum input voltage for the LT1084CP-5#PBF is 30V.

  3. Q: What is the output current capability of the LT1084CP-5#PBF? A: The LT1084CP-5#PBF can provide an output current of up to 5A.

  4. Q: Can the LT1084CP-5#PBF be used to regulate voltages other than 5V? A: Yes, the LT1084CP-5#PBF can be used to regulate other voltages by adjusting the feedback resistors.

  5. Q: Is the LT1084CP-5#PBF suitable for low dropout applications? A: Yes, the LT1084CP-5#PBF has a low dropout voltage, making it suitable for low dropout applications.

  6. Q: Does the LT1084CP-5#PBF require any external components for operation? A: Yes, the LT1084CP-5#PBF requires input and output capacitors for stability and filtering.

  7. Q: Can the LT1084CP-5#PBF handle short-circuit conditions? A: Yes, the LT1084CP-5#PBF has built-in protection features that allow it to handle short-circuit conditions.

  8. Q: What is the thermal resistance of the LT1084CP-5#PBF? A: The thermal resistance of the LT1084CP-5#PBF is typically around 5°C/W.

  9. Q: Can the LT1084CP-5#PBF be used in automotive applications? A: Yes, the LT1084CP-5#PBF is suitable for automotive applications as it can operate over a wide temperature range.

  10. Q: Is the LT1084CP-5#PBF available in different package options? A: Yes, the LT1084CP-5#PBF is available in various package options, including TO-220 and DDPAK.

Please note that these answers are general and may vary depending on the specific application and requirements. It is always recommended to refer to the datasheet and consult with the manufacturer for detailed information.