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L4979MD
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L4979MD

Product Overview

Category

L4979MD belongs to the category of integrated circuits (ICs).

Use

It is primarily used as a voltage regulator in electronic devices.

Characteristics

  • High efficiency
  • Low dropout voltage
  • Wide input voltage range
  • Overcurrent and thermal protection

Package

L4979MD comes in a compact surface mount package.

Essence

The essence of L4979MD lies in its ability to regulate voltage efficiently and reliably.

Packaging/Quantity

L4979MD is typically packaged in reels or tubes, with quantities varying based on customer requirements.

Specifications

  • Input Voltage Range: 4.5V to 60V
  • Output Voltage Range: 1.2V to 57V
  • Output Current: Up to 3A
  • Dropout Voltage: 0.6V at 3A
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

L4979MD has the following pin configuration:

  1. VIN: Input voltage pin
  2. GND: Ground pin
  3. VOUT: Output voltage pin
  4. ADJ: Adjustable pin for output voltage regulation
  5. EN: Enable pin for turning the regulator on/off
  6. FB: Feedback pin for voltage regulation control

Functional Features

  • High precision voltage regulation
  • Overcurrent protection
  • Thermal shutdown protection
  • Adjustable output voltage
  • Low quiescent current

Advantages and Disadvantages

Advantages

  • High efficiency leads to reduced power dissipation
  • Wide input voltage range allows for versatile applications
  • Overcurrent and thermal protection ensure device safety
  • Adjustable output voltage provides flexibility

Disadvantages

  • Limited output current compared to some other regulators
  • Higher cost compared to non-integrated solutions

Working Principles

L4979MD operates on the principle of switching voltage regulation. It uses a feedback mechanism to maintain a stable output voltage despite variations in input voltage and load conditions. The internal circuitry continuously monitors the output voltage and adjusts the duty cycle of the switching transistor to regulate the output voltage within the desired range.

Detailed Application Field Plans

L4979MD finds applications in various electronic devices, including but not limited to: - Power supplies - Battery chargers - Automotive electronics - Industrial control systems

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to L4979MD are: - LM317: Adjustable linear voltage regulator - LT1083: High current linear voltage regulator - TPS5430: Switching voltage regulator with integrated MOSFETs

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

In conclusion, L4979MD is a versatile voltage regulator IC with high efficiency, wide input voltage range, and various protection features. Its adjustable output voltage and compact package make it suitable for a wide range of applications in different industries.

技術ソリューションにおける L4979MD 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 L4979MD in technical solutions:

  1. Q: What is L4979MD? A: L4979MD is a voltage regulator IC (integrated circuit) commonly used in technical solutions to regulate and control the voltage supplied to electronic devices.

  2. Q: What is the input voltage range supported by L4979MD? A: The input voltage range supported by L4979MD is typically between 8V and 55V.

  3. Q: What is the output voltage range provided by L4979MD? A: The output voltage range provided by L4979MD can be adjusted from 5V to 40V, depending on the specific configuration.

  4. Q: Can L4979MD handle high current loads? A: Yes, L4979MD is designed to handle high current loads, with a maximum output current of up to 5A.

  5. Q: How does L4979MD ensure stable voltage regulation? A: L4979MD utilizes a feedback mechanism that continuously monitors the output voltage and adjusts the internal circuitry to maintain a stable voltage level.

  6. Q: Is L4979MD suitable for automotive applications? A: Yes, L4979MD is often used in automotive applications due to its ability to withstand high temperatures and voltage fluctuations commonly found in vehicles.

  7. Q: Can L4979MD protect against overvoltage or short circuits? A: Yes, L4979MD includes built-in protection features such as overvoltage protection and short-circuit protection to safeguard connected devices.

  8. Q: Does L4979MD require external components for operation? A: Yes, L4979MD requires external components such as capacitors and resistors to properly configure the voltage regulation circuit.

  9. Q: Can L4979MD be used in battery-powered devices? A: Yes, L4979MD can be used in battery-powered devices as it supports a wide input voltage range and has low power consumption.

  10. Q: Are there any specific application notes or reference designs available for L4979MD? A: Yes, the manufacturer of L4979MD provides application notes and reference designs that offer guidance on using the IC in various technical solutions.

Please note that the answers provided here are general and may vary depending on the specific implementation and requirements of your technical solution.