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LD1085DT25R
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LD1085DT25R

Product Overview

Category

LD1085DT25R belongs to the category of voltage regulators.

Use

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

Characteristics

  • LD1085DT25R is a low-dropout (LDO) voltage regulator.
  • It has a fixed output voltage of 2.5V.
  • The device operates with a maximum input voltage of 30V.
  • LD1085DT25R can provide a maximum output current of 3A.

Package

The LD1085DT25R comes in a TO-220 package, which is a widely used through-hole package for power devices.

Essence

The essence of LD1085DT25R lies in its ability to regulate voltage efficiently and reliably.

Packaging/Quantity

LD1085DT25R is typically sold in reels or tubes containing a specific quantity, such as 100 pieces per reel.

Specifications

  • Input Voltage Range: Up to 30V
  • Output Voltage: 2.5V
  • Output Current: Up to 3A
  • Dropout Voltage: 1.3V (typical)
  • Line Regulation: 0.05% (typical)
  • Load Regulation: 0.1% (typical)
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LD1085DT25R has three pins:

  1. Vin (Pin 1): This pin is used to connect the input voltage.
  2. Vout (Pin 2): This pin provides the regulated output voltage of 2.5V.
  3. GND (Pin 3): This pin is connected to the ground reference.

Functional Features

  • Low dropout voltage ensures efficient regulation even when the input voltage is close to the desired output voltage.
  • Built-in thermal shutdown protection prevents the device from overheating.
  • Current limit and short-circuit protection safeguard the regulator and the connected circuitry.

Advantages and Disadvantages

Advantages

  • High output current capability of up to 3A.
  • Low dropout voltage minimizes power dissipation.
  • Wide operating temperature range allows for versatile applications.
  • Reliable and stable voltage regulation.

Disadvantages

  • Fixed output voltage may limit its use in certain applications requiring variable output voltages.
  • TO-220 package may require additional heat sinking for high-power applications.

Working Principles

The LD1085DT25R is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage, adjusting the pass transistor's resistance to maintain a constant output voltage.

Detailed Application Field Plans

LD1085DT25R finds applications in various electronic systems, including but not limited to: - Power supplies for microcontrollers and digital circuits. - Battery charging circuits. - Automotive electronics. - Industrial control systems. - Audio amplifiers.

Detailed and Complete Alternative Models

Some alternative models to LD1085DT25R include: - LM317: A popular adjustable voltage regulator. - LT1084: A fixed-output voltage regulator with higher current capability. - L4940: Another fixed-output voltage regulator with low dropout voltage.

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

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技術ソリューションにおける LD1085DT25R の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of LD1085DT25R in technical solutions:

  1. Q: What is LD1085DT25R? A: LD1085DT25R is a voltage regulator IC that provides a fixed output voltage of 2.5V.

  2. Q: What is the maximum input voltage for LD1085DT25R? A: The maximum input voltage for LD1085DT25R is 30V.

  3. Q: What is the maximum output current LD1085DT25R can handle? A: LD1085DT25R can handle a maximum output current of 3A.

  4. Q: Can LD1085DT25R be used as a step-down (buck) converter? A: Yes, LD1085DT25R can be used as a step-down converter to provide a lower output voltage than the input voltage.

  5. Q: Is LD1085DT25R suitable for battery-powered applications? A: Yes, LD1085DT25R is suitable for battery-powered applications as it has low dropout voltage and low quiescent current.

  6. Q: Does LD1085DT25R require any external components for operation? A: Yes, LD1085DT25R requires input and output capacitors for stability and proper operation.

  7. Q: Can LD1085DT25R handle high temperatures? A: Yes, LD1085DT25R has a wide operating temperature range of -40°C to +125°C.

  8. Q: Can LD1085DT25R be used in automotive applications? A: Yes, LD1085DT25R is suitable for automotive applications as it meets the AEC-Q100 automotive qualification standards.

  9. Q: What is the dropout voltage of LD1085DT25R? A: The typical dropout voltage of LD1085DT25R is 1.3V at 3A load current.

  10. Q: Can LD1085DT25R be used in adjustable voltage applications? A: No, LD1085DT25R provides a fixed output voltage of 2.5V and cannot be adjusted.

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.