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LD2982AM40R
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LD2982AM40R

Product Overview

Category

LD2982AM40R 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 LD2982AM40R comes in a small surface-mount package.

Essence

The essence of LD2982AM40R lies in its ability to provide stable and regulated voltage output for various electronic applications.

Packaging/Quantity

The LD2982AM40R is typically packaged in reels and available in quantities suitable for mass production.

Specifications

  • Input Voltage Range: 2.5V - 16V
  • Output Voltage: 4.0V
  • Dropout Voltage: 300mV @ 100mA
  • Quiescent Current: 50µA
  • Output Current: 100mA
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LD2982AM40R has three pins:

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

Functional Features

  • Low Dropout Voltage: The LD2982AM40R exhibits 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 LD2982AM40R minimizes power consumption when the load is light or idle.
  • High Output Voltage Accuracy: It provides high accuracy in maintaining the desired output voltage, ensuring reliable performance of connected electronic components.
  • Thermal Shutdown Protection: The LD2982AM40R incorporates thermal shutdown protection, preventing damage due to excessive heat.
  • Short-Circuit Current Limit: It features a short-circuit current limit to protect the regulator and connected devices from excessive current flow.

Advantages and Disadvantages

Advantages

  • Stable and regulated output voltage
  • Low dropout voltage for efficient regulation
  • Low quiescent current for reduced power consumption
  • Thermal shutdown protection for enhanced safety
  • Short-circuit current limit for device protection

Disadvantages

  • Limited output current capacity (100mA)
  • Restricted input voltage range (2.5V - 16V)

Working Principles

The LD2982AM40R 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. This allows it to maintain a stable output voltage, even when the input voltage fluctuates.

Detailed Application Field Plans

The LD2982AM40R finds applications in various electronic devices and circuits, including but not limited to: - Battery-powered devices - Portable electronics - Automotive electronics - Industrial control systems - Communication equipment

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to LD2982AM40R are: - LM1117-4.0 - LT1761-4.0 - MCP1700-4.0

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 LD2982AM40R 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 LD2982AM40R in technical solutions:

  1. Q: What is LD2982AM40R? A: LD2982AM40R is a low-dropout voltage regulator IC that provides a stable output voltage with low quiescent current.

  2. Q: What is the input voltage range for LD2982AM40R? A: The input voltage range for LD2982AM40R is typically between 2.5V and 16V.

  3. Q: What is the output voltage of LD2982AM40R? A: The output voltage of LD2982AM40R is fixed at 4.0V.

  4. Q: What is the maximum output current of LD2982AM40R? A: LD2982AM40R can provide a maximum output current of 50mA.

  5. Q: Is LD2982AM40R suitable for battery-powered applications? A: Yes, LD2982AM40R is suitable for battery-powered applications due to its low quiescent current and low dropout voltage.

  6. Q: Can LD2982AM40R handle input voltage fluctuations? A: Yes, LD2982AM40R has built-in protection features like thermal shutdown and current limit to handle input voltage fluctuations.

  7. Q: Does LD2982AM40R require any external components for operation? A: Yes, LD2982AM40R requires a minimum of two external capacitors for stability and proper operation.

  8. Q: What is the operating temperature range of LD2982AM40R? A: The operating temperature range of LD2982AM40R is typically between -40°C and +125°C.

  9. Q: Can LD2982AM40R be used in automotive applications? A: Yes, LD2982AM40R is suitable for automotive applications as it meets the necessary requirements and has a wide operating temperature range.

  10. Q: Is LD2982AM40R available in different package options? A: Yes, LD2982AM40R is available in various package options, such as SOT-23 and DFN, to suit different application requirements.

Please note that these answers are general and may vary depending on the specific datasheet and manufacturer's specifications of LD2982AM40R.