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LD2982BM33R
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LD2982BM33R

Product Overview

Category

LD2982BM33R 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

LD2982BM33R comes in a small surface-mount package.

Essence

The essence of LD2982BM33R lies in its ability to provide stable and regulated voltage output.

Packaging/Quantity

LD2982BM33R is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

  • Input Voltage Range: 2.5V - 16V
  • Output Voltage: 3.3V
  • Dropout Voltage: 300mV @ 100mA
  • Quiescent Current: 50µA
  • Output Current: 100mA
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

  1. GND (Ground)
  2. Vout (Output Voltage)
  3. Vin (Input Voltage)

Functional Features

  • Low dropout voltage ensures efficient regulation even when the input voltage is close to the desired output voltage.
  • Low quiescent current minimizes power consumption when the regulator is idle.
  • High output voltage accuracy provides precise voltage regulation for sensitive electronic components.
  • Thermal shutdown protection prevents damage due to excessive heat.
  • Short-circuit current limit protects the regulator from damage in case of a short circuit.

Advantages and Disadvantages

Advantages

  • Stable and accurate voltage regulation
  • Low power consumption
  • Compact size
  • Thermal protection

Disadvantages

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

Working Principles

LD2982BM33R 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. The regulator compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a stable output voltage.

Detailed Application Field Plans

LD2982BM33R finds applications in various electronic devices, including but not limited to: - Mobile phones - Tablets - Portable media players - Digital cameras - Wireless communication devices - Battery-powered devices

Detailed and Complete Alternative Models

Some alternative models that can be used as substitutes for LD2982BM33R include: - LM1117-3.3 - LT1763-3.3 - MCP1700-3302E/TO

These alternatives offer similar voltage regulation capabilities and are widely available in the market.

In conclusion, LD2982BM33R is a voltage regulator known for its low dropout voltage, low quiescent current, and high output voltage accuracy. It is commonly used in various electronic devices and offers stable and efficient voltage regulation. However, it has limitations in terms of output current capacity and input voltage range. Alternative models such as LM1117-3.3, LT1763-3.3, and MCP1700-3302E/TO can be considered as substitutes for LD2982BM33R.

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LD2982BM33R v technických řešeních

Sure! Here are 10 common questions and answers related to the application of LD2982BM33R in technical solutions:

  1. Q: What is LD2982BM33R? A: LD2982BM33R is a low-dropout voltage regulator IC that provides a stable output voltage of 3.3V.

  2. Q: What are the typical applications of LD2982BM33R? A: LD2982BM33R is commonly used in various electronic devices, such as microcontrollers, sensors, and other low-power digital circuits.

  3. Q: What is the input voltage range for LD2982BM33R? A: The input voltage range for LD2982BM33R is typically between 2.5V and 16V.

  4. Q: What is the maximum output current LD2982BM33R can handle? A: LD2982BM33R can handle a maximum output current of 50mA.

  5. Q: Does LD2982BM33R require any external components for operation? A: Yes, LD2982BM33R requires a minimum of two external capacitors (input and output) for stability and proper operation.

  6. Q: Can LD2982BM33R tolerate input voltage fluctuations? A: Yes, LD2982BM33R has built-in protection features that allow it to tolerate input voltage fluctuations within its specified range.

  7. Q: Is LD2982BM33R suitable for battery-powered applications? A: Yes, LD2982BM33R is well-suited for battery-powered applications due to its low dropout voltage and low quiescent current.

  8. Q: What is the thermal shutdown feature in LD2982BM33R? A: The thermal shutdown feature in LD2982BM33R protects the IC from overheating by shutting down the output when the temperature exceeds a certain threshold.

  9. Q: Can LD2982BM33R be used in automotive applications? A: Yes, LD2982BM33R is designed to meet automotive specifications and can be used in automotive applications that require a stable 3.3V voltage supply.

  10. Q: Are there any recommended PCB layout guidelines for LD2982BM33R? A: Yes, it is recommended to follow the manufacturer's guidelines for PCB layout, including proper placement of capacitors, minimizing trace lengths, and providing adequate thermal dissipation for optimal performance.

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