ON Semiconductor
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MC34025DW
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MC34025DW

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Voltage Regulator
  • Characteristics: Low-power, high-performance, precision voltage regulator
  • Package: SOIC (Small Outline Integrated Circuit)
  • Essence: The MC34025DW is a voltage regulator IC designed to provide stable and regulated output voltage for various electronic devices.
  • Packaging/Quantity: Available in reels of 2500 units

Specifications

  • Input Voltage Range: 4.5V to 40V
  • Output Voltage Range: 1.25V to 37V
  • Output Current: Up to 100mA
  • Quiescent Current: 2.5mA
  • Dropout Voltage: 0.5V
  • Line Regulation: 0.01%/V
  • Load Regulation: 0.1%
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The MC34025DW has the following pin configuration:

  1. Vout: Output Voltage
  2. Vin: Input Voltage
  3. GND: Ground
  4. Adj: Adjustable Pin
  5. NC: No Connection

Functional Features

  • Voltage Regulation: The MC34025DW provides precise voltage regulation, ensuring a stable output voltage even with varying input voltages.
  • Low Power Consumption: With a quiescent current of only 2.5mA, the IC minimizes power consumption, making it suitable for battery-powered applications.
  • Adjustable Output: The adjustable pin allows users to set the desired output voltage within the specified range.
  • Protection Mechanisms: The IC incorporates built-in protection features such as thermal shutdown and short-circuit protection.

Advantages and Disadvantages

Advantages: - High precision voltage regulation - Low power consumption - Adjustable output voltage - Built-in protection mechanisms

Disadvantages: - Limited output current capacity (up to 100mA) - Dropout voltage of 0.5V may not be suitable for low-power applications with tight voltage margins

Working Principles

The MC34025DW utilizes a feedback mechanism to regulate the output voltage. It compares the actual output voltage with a reference voltage and adjusts the internal circuitry accordingly to maintain a stable output. The adjustable pin allows users to set the desired output voltage within the specified range.

Detailed Application Field Plans

The MC34025DW is commonly used in various electronic devices that require stable and regulated power supply, such as:

  1. Consumer Electronics: TVs, audio systems, DVD players
  2. Computer Systems: Desktops, laptops, servers
  3. Industrial Equipment: Power supplies, motor control systems
  4. Automotive Electronics: Car audio systems, lighting control modules

Detailed and Complete Alternative Models

  1. LM317: A popular voltage regulator IC with similar specifications and adjustable output.
  2. LT1083: High-current, adjustable voltage regulator IC suitable for demanding applications.
  3. LM7805: Fixed-output voltage regulator IC with a 5V output.

These alternative models offer different features and specifications, providing options based on specific application requirements.

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Listen Sie 10 häufige Fragen und Antworten im Zusammenhang mit der Anwendung von MC34025DW in technischen Lösungen auf

  1. What is the maximum operating frequency of MC34025DW?

    • The maximum operating frequency of MC34025DW is typically 100 kHz.

  2. What is the input voltage range for MC34025DW?

    • The input voltage range for MC34025DW is typically 8V to 40V.

  3. Can MC34025DW be used in buck-boost converters?

    • Yes, MC34025DW can be used in buck-boost converters due to its versatile design.

  4. What is the typical output current capability of MC34025DW?

    • The typical output current capability of MC34025DW is around 100mA.

  5. Does MC34025DW have built-in overcurrent protection?

    • Yes, MC34025DW features built-in overcurrent protection for added safety.

  6. Is MC34025DW suitable for battery charging applications?

    • Yes, MC34025DW is suitable for battery charging applications, especially in low-power scenarios.

  7. What are the key advantages of using MC34025DW in power supply designs?

    • The key advantages include high efficiency, compact size, and reliable performance.

  8. Can MC34025DW operate in a wide temperature range?

    • Yes, MC34025DW is designed to operate in a wide temperature range, making it suitable for various environments.

  9. Are there any application notes available for integrating MC34025DW into designs?

    • Yes, detailed application notes are available to assist with the integration of MC34025DW into specific designs.

  10. What are the typical load regulation characteristics of MC34025DW?

    • The typical load regulation characteristics of MC34025DW ensure stable output voltage under varying load conditions.