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LD1084D2M-R
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LD1084D2M-R

Product Overview

Category

LD1084D2M-R belongs to the category of voltage regulators.

Use

It is primarily used for regulating voltage in electronic circuits.

Characteristics

  • Package: TO-263-5 (D2PAK)
  • Essence: Linear voltage regulator
  • Packaging/Quantity: Available in tape and reel packaging, quantity varies based on supplier

Specifications

The LD1084D2M-R voltage regulator has the following specifications:

  • Output Voltage Range: 1.25V to 37V
  • Output Current: Up to 5A
  • Dropout Voltage: 1.3V typical at 3A
  • Line Regulation: 0.015% typical
  • Load Regulation: 0.1% typical
  • Ripple Rejection Ratio: 70dB typical
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LD1084D2M-R has a total of five pins:

  1. Input (VIN): This pin is used to provide the input voltage to the regulator.
  2. Ground (GND): This pin is connected to the ground reference of the circuit.
  3. Output (VOUT): The regulated output voltage is obtained from this pin.
  4. Adjust (ADJ): This pin is used to adjust the output voltage by connecting an external resistor network.
  5. Thermal Pad (TAB): This pin is used for heat dissipation and should be connected to a suitable heatsink.

Functional Features

The LD1084D2M-R offers the following functional features:

  • High accuracy and low dropout voltage
  • Built-in thermal shutdown protection
  • Current limit protection
  • Fast transient response
  • Adjustable output voltage with external resistors

Advantages and Disadvantages

Advantages

  • Wide range of output voltage options
  • High output current capability
  • Excellent line and load regulation
  • Thermal shutdown protection ensures safe operation

Disadvantages

  • Linear voltage regulators are less efficient compared to switching regulators
  • Heat dissipation may be required for high power applications

Working Principles

The LD1084D2M-R 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 obtained from the output. Any difference between these voltages is amplified and used to control the pass transistor, ensuring a stable output voltage.

Detailed Application Field Plans

The LD1084D2M-R can be used in various applications, including:

  1. Power supplies for microcontrollers and other digital ICs
  2. Battery charging circuits
  3. Audio amplifiers
  4. LED drivers
  5. Automotive electronics

Detailed and Complete Alternative Models

Some alternative models to LD1084D2M-R include:

  1. LM317: A popular adjustable linear voltage regulator with similar specifications.
  2. LT1084: Another high-current linear voltage regulator with low dropout voltage.
  3. LDO50V: A low dropout voltage regulator suitable for applications requiring higher input voltages.

These alternative models offer similar functionality and can be considered based on specific requirements.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de LD1084D2M-R en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of LD1084D2M-R in technical solutions:

  1. Q: What is LD1084D2M-R? A: LD1084D2M-R is a voltage regulator IC that provides a fixed output voltage for various electronic applications.

  2. Q: What is the input voltage range supported by LD1084D2M-R? A: The input voltage range supported by LD1084D2M-R is typically between 4.5V and 20V.

  3. Q: What is the output voltage range of LD1084D2M-R? A: LD1084D2M-R can provide a fixed output voltage of 1.25V, 1.8V, 2.5V, 3.3V, or 5V, depending on the specific variant.

  4. Q: What is the maximum output current that LD1084D2M-R can handle? A: LD1084D2M-R can handle a maximum output current of up to 5A, making it suitable for powering a wide range of devices.

  5. Q: Is LD1084D2M-R a linear or switching regulator? A: LD1084D2M-R is a linear regulator, which means it regulates the output voltage by dissipating excess power as heat.

  6. Q: Can LD1084D2M-R be used in automotive applications? A: Yes, LD1084D2M-R is designed to meet the requirements of automotive applications and can operate in a wide temperature range.

  7. Q: Does LD1084D2M-R require any external components for operation? A: Yes, LD1084D2M-R requires a few external components such as input and output capacitors for stability and filtering.

  8. Q: Can LD1084D2M-R handle short-circuit conditions? A: Yes, LD1084D2M-R has built-in protection features that allow it to withstand short-circuit conditions without damage.

  9. Q: What is the typical dropout voltage of LD1084D2M-R? A: The typical dropout voltage of LD1084D2M-R is around 1.3V, which means the input voltage must be at least 1.3V higher than the desired output voltage.

  10. Q: Are there any recommended heat dissipation techniques for LD1084D2M-R? A: Yes, LD1084D2M-R requires a heatsink or proper PCB layout to dissipate excess heat generated during operation, especially at higher output currents.

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