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LD2982AM47R
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LD2982AM47R

Product Overview

Category

LD2982AM47R belongs to the category of voltage regulators.

Use

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

Characteristics

  • Low dropout voltage
  • High output voltage accuracy
  • Low quiescent current
  • Thermal shutdown protection

Package

LD2982AM47R is available in a small surface-mount package, such as SOT-23 or DFN.

Essence

The essence of LD2982AM47R lies in its ability to provide stable and regulated voltage for various electronic devices.

Packaging/Quantity

Typically, LD2982AM47R is packaged in reels or tubes, with quantities varying depending on the manufacturer's specifications.

Specifications

  • Input Voltage Range: 2.5V to 16V
  • Output Voltage: 4.7V
  • Dropout Voltage: 300mV (typical)
  • Quiescent Current: 50µA (typical)
  • Maximum Output Current: 50mA
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

LD2982AM47R has three pins:

  1. VIN (Input Voltage): Connects to the input voltage source.
  2. VOUT (Output Voltage): Provides the regulated output voltage.
  3. GND (Ground): Connected to the ground reference of the circuit.

Functional Features

  • Low dropout voltage ensures efficient regulation even when the input voltage is close to the desired output voltage.
  • High output voltage accuracy guarantees precise voltage regulation.
  • Low quiescent current minimizes power consumption when the load is light.
  • Thermal shutdown protection prevents the device from overheating.

Advantages and Disadvantages

Advantages

  • Reliable voltage regulation
  • Compact size
  • Wide operating temperature range
  • Low power consumption

Disadvantages

  • Limited maximum output current
  • Requires external components for stability

Working Principles

LD2982AM47R operates based on the principle of a linear voltage regulator. It uses a pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. The internal circuitry compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a stable output voltage.

Detailed Application Field Plans

LD2982AM47R finds applications in various electronic devices, including but not limited to: - Battery-powered devices - Portable audio players - Mobile phones - Digital cameras - Wireless communication modules

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to LD2982AM47R are: - LM1117-4.7 - LT1763-4.7 - MCP1700-4.7

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

In conclusion, LD2982AM47R is a voltage regulator with excellent characteristics, making it suitable for a wide range of applications. Its compact size, low power consumption, and reliable performance make it a popular choice among electronic designers.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de LD2982AM47R en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of LD2982AM47R in technical solutions:

  1. Q: What is LD2982AM47R? A: LD2982AM47R is a low dropout voltage regulator IC that provides a fixed output voltage of 4.7V.

  2. Q: What is the input voltage range for LD2982AM47R? A: The input voltage range for LD2982AM47R is typically between 2.5V and 16V.

  3. Q: What is the maximum output current LD2982AM47R can handle? A: LD2982AM47R can handle a maximum output current of 50mA.

  4. Q: Is LD2982AM47R suitable for battery-powered applications? A: Yes, LD2982AM47R is suitable for battery-powered applications as it has a low dropout voltage and low quiescent current.

  5. Q: Can LD2982AM47R be used in automotive applications? A: Yes, LD2982AM47R is designed to meet automotive specifications and can be used in automotive applications.

  6. Q: Does LD2982AM47R have built-in thermal protection? A: Yes, LD2982AM47R has built-in thermal shutdown protection to prevent overheating.

  7. Q: Can LD2982AM47R operate in a wide temperature range? A: Yes, LD2982AM47R can operate in a temperature range of -40°C to +125°C.

  8. Q: What is the dropout voltage of LD2982AM47R? A: The typical dropout voltage of LD2982AM47R is around 0.4V at 50mA load.

  9. Q: Does LD2982AM47R require any external components for stability? A: Yes, LD2982AM47R requires an output capacitor for stability. The recommended value is 1µF.

  10. Q: Can LD2982AM47R be used in space-constrained applications? A: Yes, LD2982AM47R is available in a small SOT-23 package, making it suitable for space-constrained applications.

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