Diodes Incorporated
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AP1084K18L-U
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AP1084K18L-U

Product Overview

Category: Voltage Regulator
Use: To regulate and stabilize voltage in electronic circuits
Characteristics: High precision, low dropout voltage, adjustable output, current limiting protection
Package: TO-263-2 (D2PAK)
Essence: Linear voltage regulator
Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

  • Input Voltage Range: 2.5V to 20V
  • Output Voltage Range: 1.25V to 18V
  • Dropout Voltage: 1.3V at 3A
  • Output Current: Up to 5A
  • Line Regulation: 0.2% typical
  • Load Regulation: 0.4% typical
  • Quiescent Current: 10mA typical
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The AP1084K18L-U has three pins:

  1. Input (VIN): Connects to the input voltage source.
  2. Output (VOUT): Provides the regulated output voltage.
  3. Ground (GND): Common ground reference for the regulator.

Functional Features

  • Adjustable Output: The output voltage can be adjusted using external resistors.
  • Current Limiting Protection: Protects the regulator and the load from excessive current.
  • Thermal Shutdown: Prevents overheating by shutting down the regulator when the temperature exceeds a certain threshold.
  • Short Circuit Protection: Safeguards against short circuits by limiting the output current.

Advantages and Disadvantages

Advantages: - High precision regulation - Low dropout voltage - Wide input voltage range - Adjustable output voltage - Current limiting protection

Disadvantages: - Higher power dissipation compared to switching regulators - Limited output current compared to some other voltage regulators

Working Principles

The AP1084K18L-U is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with a fraction of the output voltage, and adjusts the pass transistor accordingly to maintain a stable output voltage.

Detailed Application Field Plans

The AP1084K18L-U is commonly used in various electronic devices and applications, including:

  1. Power Supplies: Provides regulated voltage for microcontrollers, sensors, and other components.
  2. Automotive Electronics: Used in automotive systems such as infotainment systems, lighting controls, and engine management.
  3. Industrial Control Systems: Regulates voltage in control panels, PLCs (Programmable Logic Controllers), and motor drives.
  4. Consumer Electronics: Found in televisions, audio equipment, and computer peripherals.
  5. Communication Systems: Used in routers, switches, and wireless access points.

Detailed and Complete Alternative Models

  1. LM317: A popular adjustable linear voltage regulator with similar specifications.
  2. LT1084: Offers higher output current capability and lower dropout voltage.
  3. LM1117: Low dropout voltage regulator available in fixed and adjustable versions.
  4. LM7805: Fixed 5V linear voltage regulator commonly used in low-power applications.

These alternative models provide different features and capabilities, allowing users to choose the most suitable option for their specific requirements.

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기술 솔루션에 AP1084K18L-U 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.

Sure! Here are 10 common questions and answers related to the application of AP1084K18L-U in technical solutions:

  1. Q: What is AP1084K18L-U? A: AP1084K18L-U is a voltage regulator IC that provides a fixed output voltage of 1.8V.

  2. Q: What is the input voltage range for AP1084K18L-U? A: The input voltage range for AP1084K18L-U is typically between 2.5V and 30V.

  3. Q: What is the maximum output current of AP1084K18L-U? A: AP1084K18L-U can provide a maximum output current of 5A.

  4. Q: Can AP1084K18L-U be used in both step-up and step-down applications? A: No, AP1084K18L-U is a step-down (buck) voltage regulator and can only be used for stepping down the input voltage.

  5. Q: Is AP1084K18L-U suitable for low-power applications? A: No, AP1084K18L-U is designed for medium to high power applications due to its high output current capability.

  6. Q: Does AP1084K18L-U require any external components for operation? A: Yes, AP1084K18L-U requires input and output capacitors for stability and proper operation.

  7. Q: What is the typical dropout voltage of AP1084K18L-U? A: The typical dropout voltage of AP1084K18L-U is around 1.2V.

  8. Q: Can AP1084K18L-U handle overcurrent or thermal protection? A: Yes, AP1084K18L-U has built-in overcurrent and thermal protection features to safeguard the IC from damage.

  9. Q: Can AP1084K18L-U operate in a wide temperature range? A: Yes, AP1084K18L-U can operate within a temperature range of -40°C to +125°C.

  10. Q: What are some typical applications for AP1084K18L-U? A: AP1084K18L-U is commonly used in various electronic devices such as power supplies, industrial equipment, automotive systems, and telecommunications equipment.

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