Microchip Technology
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MIC3839YMM
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MIC3839YMM

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - High output current capability - Adjustable output voltage - Thermal shutdown protection - Short-circuit current limit

Package: 8-pin MSOP (Mini Small Outline Package)

Essence: The MIC3839YMM is a voltage regulator IC that provides a stable output voltage with low dropout. It is commonly used in various electronic devices to regulate and control the voltage supplied to different components.

Packaging/Quantity: The MIC3839YMM is available in a standard reel packaging, with 2500 units per reel.

Specifications

  • Input Voltage Range: 2.5V to 6.5V
  • Output Voltage Range: 1.2V to 5.5V
  • Dropout Voltage: 200mV at 500mA
  • Output Current: Up to 1A
  • Quiescent Current: 120µA
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The MIC3839YMM has the following pin configuration:

  1. EN (Enable): Enable input pin for turning the regulator on/off.
  2. GND (Ground): Ground reference pin.
  3. FB (Feedback): Feedback pin for adjusting the output voltage.
  4. VOUT (Output Voltage): Output voltage pin.
  5. NC (No Connection): No connection pin.
  6. NC (No Connection): No connection pin.
  7. VIN (Input Voltage): Input voltage pin.
  8. BYP (Bypass): Bypass capacitor connection pin.

Functional Features

  • Low Dropout Voltage: The MIC3839YMM exhibits a low dropout voltage, ensuring efficient regulation even when the input voltage is close to the desired output voltage.
  • High Output Current Capability: With a maximum output current of 1A, this voltage regulator can handle high current demands.
  • Adjustable Output Voltage: The output voltage can be adjusted within the specified range using an external resistor divider network connected to the FB pin.
  • Thermal Shutdown Protection: The IC incorporates thermal shutdown protection, which prevents damage due to excessive temperature.
  • Short-Circuit Current Limit: The MIC3839YMM has built-in short-circuit current limiting, protecting the device and the load from excessive current.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient regulation. - High output current capability allows for powering various components. - Adjustable output voltage provides flexibility in different applications. - Thermal shutdown protection prevents overheating. - Short-circuit current limit protects the device and load.

Disadvantages: - Limited input voltage range (2.5V to 6.5V). - Quiescent current of 120µA may not be suitable for ultra-low power applications.

Working Principles

The MIC3839YMM is a linear voltage regulator that operates by maintaining a constant voltage difference between the input and output terminals. It uses a pass transistor to regulate the output voltage based on the feedback received from the FB pin. By adjusting the resistance connected to the FB pin, the desired output voltage can be set.

When the enable (EN) pin is high, the regulator is turned on, and it starts regulating the output voltage. If the input voltage drops below the desired output voltage plus the dropout voltage, the regulator enters dropout mode, where the output voltage cannot be maintained at the desired level.

Detailed Application Field Plans

The MIC3839YMM is widely used in various electronic devices and applications, including but not limited to: - Battery-powered devices - Portable audio players - Mobile phones - Wireless communication devices - Embedded systems - Automotive electronics

Detailed and Complete Alternative Models

  1. LM1117-3.3: A popular alternative with fixed 3.3V output voltage.
  2. LT1763: Low dropout linear regulator with adjustable output voltage.
  3. TPS7A4700: High-performance voltage regulator with ultra-low noise.

These alternative models offer similar functionality and can be used as substitutes for the MIC3839YMM in different applications.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací MIC3839YMM v technických řešeních

Sure! Here are 10 common questions and answers related to the application of MIC3839YMM in technical solutions:

  1. Q: What is MIC3839YMM? A: MIC3839YMM is a voltage regulator IC (integrated circuit) commonly used in technical solutions for power management.

  2. Q: What is the input voltage range of MIC3839YMM? A: The input voltage range of MIC3839YMM is typically between 4.5V and 60V.

  3. Q: What is the output voltage range of MIC3839YMM? A: The output voltage range of MIC3839YMM can be adjusted from 1.25V to 37V.

  4. Q: What is the maximum output current of MIC3839YMM? A: MIC3839YMM can provide a maximum output current of up to 1.5A.

  5. Q: Is MIC3839YMM suitable for low-power applications? A: Yes, MIC3839YMM is suitable for low-power applications as it has a low quiescent current and high efficiency.

  6. Q: Can MIC3839YMM handle high input voltages? A: Yes, MIC3839YMM is designed to handle high input voltages up to 60V, making it suitable for various applications.

  7. Q: Does MIC3839YMM have built-in protection features? A: Yes, MIC3839YMM includes built-in protection features such as thermal shutdown, current limit, and short-circuit protection.

  8. Q: Can MIC3839YMM operate in a wide temperature range? A: Yes, MIC3839YMM can operate in a wide temperature range, typically from -40°C to +125°C.

  9. Q: What type of package does MIC3839YMM come in? A: MIC3839YMM is available in a small 8-pin MSOP (Mini Small Outline Package) for easy integration into compact designs.

  10. Q: What are some typical applications of MIC3839YMM? A: MIC3839YMM is commonly used in various technical solutions, including industrial automation, automotive electronics, and power supplies for consumer electronics.

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