Microchip Technology
画像はイメージの場合もございます。
商品詳細は仕様をご覧ください。
MIC2937A-12WU
詳細を表示 DataSheets

MIC2937A-12WU

Product Overview

The MIC2937A-12WU belongs to the category of voltage regulators and is commonly used to provide a stable 12V output voltage from a higher input voltage. This device is characterized by its high accuracy, low dropout voltage, and low quiescent current. The package type for the MIC2937A-12WU is TO-263, and it is available in various packaging quantities.

Specifications

  • Input Voltage Range: 2.5V to 26V
  • Output Voltage: 12V
  • Dropout Voltage: 450mV at 1A
  • Quiescent Current: 120µA
  • Package Type: TO-263
  • Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The MIC2937A-12WU has three pins: 1. Vin (Input) 2. Vout (Output) 3. GND (Ground)

Functional Features

  • High Accuracy
  • Low Dropout Voltage
  • Low Quiescent Current
  • Thermal Shutdown Protection

Advantages and Disadvantages

Advantages

  • Stable and accurate output voltage
  • Wide input voltage range
  • Low dropout voltage
  • Low quiescent current

Disadvantages

  • Higher cost compared to traditional linear regulators
  • Limited maximum output current

Working Principles

The MIC2937A-12WU utilizes a feedback control mechanism to maintain a constant output voltage despite variations in the input voltage and load conditions. It employs a series pass PNP transistor to regulate the output voltage and includes thermal shutdown protection to prevent damage due to excessive temperature.

Detailed Application Field Plans

The MIC2937A-12WU is commonly used in applications requiring a stable 12V power supply, such as: - Battery-powered devices - Automotive electronics - Industrial control systems - Telecommunications equipment

Detailed and Complete Alternative Models

Some alternative models to the MIC2937A-12WU include: - LM2940 - LT1086 - ADP3338

In conclusion, the MIC2937A-12WU is a reliable voltage regulator with high accuracy and low dropout voltage, making it suitable for various electronic applications requiring a stable 12V power supply.

[Word count: 320]

技術ソリューションにおける MIC2937A-12WU 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。

  1. What is the MIC2937A-12WU?

    • The MIC2937A-12WU is a high-current, low-dropout voltage regulator designed for use in applications requiring a regulated output from an unregulated input supply.

  2. What is the maximum input voltage for the MIC2937A-12WU?

    • The maximum input voltage for the MIC2937A-12WU is 26 volts.

  3. What is the typical dropout voltage of the MIC2937A-12WU?

    • The typical dropout voltage of the MIC2937A-12WU is 0.6 volts at 1A load current.

  4. What is the maximum output current of the MIC2937A-12WU?

    • The maximum output current of the MIC2937A-12WU is 3A.

  5. What are the typical applications for the MIC2937A-12WU?

    • Typical applications for the MIC2937A-12WU include post regulators for switching supplies, battery chargers, and other applications requiring a regulated output voltage.

  6. What is the operating temperature range of the MIC2937A-12WU?

    • The operating temperature range of the MIC2937A-12WU is -40°C to 125°C.

  7. Does the MIC2937A-12WU require an external heat sink?

    • The MIC2937A-12WU does not require an external heat sink for most applications.

  8. Is the MIC2937A-12WU available in different package types?

    • Yes, the MIC2937A-12WU is available in TO-220 and TO-263 package types.

  9. What are the key features of the MIC2937A-12WU?

    • Key features of the MIC2937A-12WU include low dropout voltage, current limiting, thermal shutdown, and high ripple rejection.

  10. Can the MIC2937A-12WU be used in automotive applications?

    • Yes, the MIC2937A-12WU is suitable for use in automotive applications, provided it meets the specific requirements and standards for automotive electronics.