Linear Technology/Analog Devices
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LT1085CM#PBF
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LT1085CM#PBF

Product Overview

Category

LT1085CM#PBF belongs to the category of voltage regulators.

Use

It is commonly used to regulate and stabilize voltage in electronic circuits.

Characteristics

  • High accuracy
  • Low dropout voltage
  • Fast transient response
  • Current limiting
  • Thermal shutdown protection

Package

LT1085CM#PBF is available in a TO-220 package.

Essence

The essence of LT1085CM#PBF lies in its ability to provide a stable output voltage despite fluctuations in input voltage or load conditions.

Packaging/Quantity

LT1085CM#PBF is typically packaged in reels or tubes, with quantities varying depending on the supplier.

Specifications

  • Input Voltage Range: 3.6V to 30V
  • Output Voltage Range: 1.2V to 29.5V
  • Dropout Voltage: 1.2V (typical)
  • Output Current: Up to 3A
  • Line Regulation: 0.015% (typical)
  • Load Regulation: 0.1% (typical)
  • Operating Temperature Range: -40°C to 125°C

Pin Configuration

LT1085CM#PBF has three pins:

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

Functional Features

  • Adjustable output voltage through the ADJ pin.
  • Overcurrent and thermal protection.
  • Low dropout voltage ensures efficient regulation even with small voltage differences between input and output.
  • Fast transient response enables quick stabilization of the output voltage.

Advantages

  • High accuracy and stability in voltage regulation.
  • Wide input voltage range allows for versatile applications.
  • Robust current limiting and thermal shutdown protection ensure safe operation.
  • Low dropout voltage minimizes power dissipation.

Disadvantages

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

Working Principles

LT1085CM#PBF operates on the principle of a linear regulator. It uses a pass transistor to regulate the output voltage based on the feedback received from the ADJ pin. The internal circuitry compares the reference voltage with the feedback voltage and adjusts the pass transistor accordingly to maintain the desired output voltage.

Detailed Application Field Plans

LT1085CM#PBF finds applications in various fields, including:

  1. Power supply circuits for electronic devices.
  2. Battery charging circuits.
  3. Audio amplifiers.
  4. Industrial control systems.
  5. Automotive electronics.

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to LT1085CM#PBF are:

  1. LM317: A popular adjustable voltage regulator with similar features.
  2. LT1084: Offers higher output current capability.
  3. LM7805: Fixed 5V voltage regulator commonly used in low-power applications.

These alternative models provide different specifications and may better suit specific requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LT1085CM#PBF v technických řešeních

Sure! Here are 10 common questions and answers related to the application of LT1085CM#PBF in technical solutions:

  1. Q: What is the LT1085CM#PBF? A: The LT1085CM#PBF is a high-performance adjustable linear voltage regulator.

  2. Q: What is the input voltage range for the LT1085CM#PBF? A: The input voltage range for the LT1085CM#PBF is typically between 3.6V and 40V.

  3. Q: What is the output voltage range for the LT1085CM#PBF? A: The output voltage range for the LT1085CM#PBF can be adjusted from 1.2V to 32V.

  4. Q: What is the maximum output current of the LT1085CM#PBF? A: The LT1085CM#PBF can provide a maximum output current of up to 3A.

  5. Q: How does the LT1085CM#PBF handle thermal regulation? A: The LT1085CM#PBF has built-in thermal regulation, which protects the device from overheating by reducing the output current as the temperature rises.

  6. Q: Can the LT1085CM#PBF be used in both positive and negative voltage applications? A: Yes, the LT1085CM#PBF can be used in both positive and negative voltage applications.

  7. Q: Does the LT1085CM#PBF require any external components for operation? A: Yes, the LT1085CM#PBF requires a few external components such as input and output capacitors for stable operation.

  8. Q: Is the LT1085CM#PBF suitable for low-dropout (LDO) applications? A: Yes, the LT1085CM#PBF is suitable for low-dropout applications as it has a very low dropout voltage.

  9. Q: Can the LT1085CM#PBF handle short-circuit conditions? A: Yes, the LT1085CM#PBF has built-in current limiting and thermal shutdown protection to handle short-circuit conditions.

  10. Q: What are some typical applications of the LT1085CM#PBF? A: The LT1085CM#PBF is commonly used in various technical solutions such as power supplies, battery chargers, instrumentation, and audio amplifiers.

Please note that the answers provided here are general and may vary depending on specific application requirements.