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AP1117T18L-U
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AP1117T18L-U

Product Overview

Category

The AP1117T18L-U belongs to the category of low dropout (LDO) linear voltage regulators.

Use

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

Characteristics

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

Package

The AP1117T18L-U is available in a TO-252 package.

Essence

This regulator is essential for maintaining stable voltage levels in electronic systems.

Packaging/Quantity

The AP1117T18L-U is typically packaged in reels or tubes, with quantities varying based on manufacturer specifications.

Specifications

  • Input Voltage Range: 4.2V to 15V
  • Output Voltage: 1.8V
  • Maximum Output Current: 1A
  • Dropout Voltage: 1.1V at 1A
  • Quiescent Current: 5mA
  • Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The AP1117T18L-U has three pins: 1. Input (VIN) 2. Ground (GND) 3. Output (VOUT)

Functional Features

  • Low dropout voltage ensures efficient regulation even with small voltage differentials.
  • High accuracy provides precise output voltage control.
  • Low quiescent current minimizes power consumption when the regulator is idle.
  • Thermal shutdown protection prevents damage from excessive heat.

Advantages and Disadvantages

Advantages

  • Stable and accurate voltage regulation
  • Low dropout voltage
  • Thermal protection for enhanced reliability

Disadvantages

  • Limited maximum output current compared to some alternatives
  • Higher quiescent current than certain ultra-low-power regulators

Working Principles

The AP1117T18L-U operates by comparing the output voltage to a reference voltage and adjusting the pass transistor to maintain the desired output level. It utilizes a feedback loop to continuously monitor and adjust the output voltage.

Detailed Application Field Plans

The AP1117T18L-U is commonly used in applications such as: - Battery-powered devices - Portable electronics - Embedded systems - Industrial control systems

Detailed and Complete Alternative Models

Some alternative models to the AP1117T18L-U include: - LM1117 - LT1763 - ADP3338

These alternatives offer similar functionality and may have differences in terms of dropout voltage, maximum output current, and package options.

In conclusion, the AP1117T18L-U is a reliable and efficient LDO linear voltage regulator suitable for a wide range of electronic applications, providing stable voltage regulation and thermal protection. While it has certain limitations in terms of maximum output current and quiescent current, it remains a popular choice for many design scenarios.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de AP1117T18L-U en soluciones técnicas

  1. What is the input voltage range for AP1117T18L-U?

    • The input voltage range for AP1117T18L-U is typically 4.75V to 15V.

  2. What is the output voltage of AP1117T18L-U?

    • The output voltage of AP1117T18L-U is fixed at 1.8V.

  3. What is the maximum output current of AP1117T18L-U?

    • The maximum output current of AP1117T18L-U is 1A.

  4. What is the dropout voltage of AP1117T18L-U?

    • The dropout voltage of AP1117T18L-U is typically 1.1V at 800mA.

  5. What is the typical quiescent current of AP1117T18L-U?

    • The typical quiescent current of AP1117T18L-U is 5mA.

  6. What are the typical applications for AP1117T18L-U?

    • AP1117T18L-U is commonly used in applications such as power supplies, industrial control systems, and consumer electronics.

  7. Does AP1117T18L-U require an external capacitor for stability?

    • Yes, AP1117T18L-U requires an output capacitor for stability.

  8. Is AP1117T18L-U available in a surface-mount package?

    • Yes, AP1117T18L-U is available in a SOT-223 package.

  9. What is the operating temperature range of AP1117T18L-U?

    • The operating temperature range of AP1117T18L-U is typically -40°C to 125°C.

  10. Is AP1117T18L-U RoHS compliant?

    • Yes, AP1117T18L-U is RoHS compliant, making it suitable for environmentally friendly designs.