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LD2982AM18R
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LD2982AM18R

Product Overview

Category

The LD2982AM18R belongs to the category of voltage regulators.

Use

It is primarily used for regulating voltage in electronic circuits.

Characteristics

  • Low dropout voltage
  • Low quiescent current
  • High output voltage accuracy
  • Thermal shutdown protection
  • Short-circuit current limit

Package

The LD2982AM18R comes in a small surface-mount package.

Essence

The essence of LD2982AM18R lies in its ability to provide stable and regulated voltage output.

Packaging/Quantity

The LD2982AM18R is typically packaged in reels or tubes, with quantities varying based on customer requirements.

Specifications

  • Input Voltage Range: 2.5V - 16V
  • Output Voltage: 1.8V
  • Dropout Voltage: 300mV @ 100mA
  • Quiescent Current: 50µA
  • Output Current: 100mA
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LD2982AM18R has three pins:

  1. VIN (Input Voltage)
  2. GND (Ground)
  3. VOUT (Output Voltage)

Functional Features

  • Low Dropout Voltage: The LD2982AM18R exhibits a low dropout voltage, ensuring efficient regulation even when the input voltage is close to the desired output voltage.
  • Low Quiescent Current: With a low quiescent current, the LD2982AM18R minimizes power consumption when the load is light.
  • High Output Voltage Accuracy: This voltage regulator provides high accuracy in maintaining the desired output voltage, ensuring stability in electronic circuits.
  • Thermal Shutdown Protection: The LD2982AM18R incorporates thermal shutdown protection, preventing damage due to excessive heat.
  • Short-Circuit Current Limit: It features a short-circuit current limit, safeguarding the regulator and the connected circuitry from damage in case of a short circuit.

Advantages and Disadvantages

Advantages

  • Efficient voltage regulation
  • Low power consumption
  • High output voltage accuracy
  • Protection against thermal overload and short circuits

Disadvantages

  • Limited output current capacity (100mA)

Working Principles

The LD2982AM18R 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 maintaining a constant voltage drop across the pass transistor, it ensures a stable output voltage regardless of variations in the input voltage or load conditions.

Detailed Application Field Plans

The LD2982AM18R finds applications in various electronic devices and systems, including but not limited to: - Battery-powered devices - Portable consumer electronics - Industrial control systems - Automotive electronics - Medical equipment

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to LD2982AM18R are: - LM1117-1.8 - LT1763-1.8 - MCP1700-1.8

These models offer similar voltage regulation capabilities and can be used as substitutes depending on specific requirements.

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技術ソリューションにおける LD2982AM18R 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 LD2982AM18R in technical solutions:

  1. Q: What is LD2982AM18R? A: LD2982AM18R is a low dropout voltage regulator IC that provides a fixed output voltage of 1.8V.

  2. Q: What is the input voltage range for LD2982AM18R? A: The input voltage range for LD2982AM18R is typically between 2.5V and 16V.

  3. Q: What is the maximum output current LD2982AM18R can handle? A: LD2982AM18R can handle a maximum output current of 50mA.

  4. Q: Can LD2982AM18R be used in battery-powered applications? A: Yes, LD2982AM18R can be used in battery-powered applications as it has a low dropout voltage and low quiescent current.

  5. Q: Does LD2982AM18R require any external components for operation? A: Yes, LD2982AM18R requires an input capacitor and an output capacitor for stable operation.

  6. Q: What is the typical dropout voltage of LD2982AM18R? A: The typical dropout voltage of LD2982AM18R is around 200mV at full load.

  7. Q: Can LD2982AM18R handle overcurrent or thermal protection? A: Yes, LD2982AM18R has built-in overcurrent and thermal protection features to ensure safe operation.

  8. Q: Is LD2982AM18R suitable for noise-sensitive applications? A: Yes, LD2982AM18R has excellent ripple rejection characteristics, making it suitable for noise-sensitive applications.

  9. Q: Can LD2982AM18R be used in automotive applications? A: Yes, LD2982AM18R is designed to meet automotive specifications and can be used in automotive applications.

  10. Q: What is the package type of LD2982AM18R? A: LD2982AM18R is available in a small SOT-23 package, which is suitable for space-constrained designs.

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