Microchip Technology
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MIC4223YM
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MIC4223YM

Product Overview

  • Category: Integrated Circuit
  • Use: Power Management
  • Characteristics: Low Dropout Voltage Regulator
  • Package: SOIC (Small Outline Integrated Circuit)
  • Essence: High-performance voltage regulator with low dropout voltage and high output current capability.
  • Packaging/Quantity: Available in reels of 2500 units.

Specifications

  • Input Voltage Range: 2.5V to 16V
  • Output Voltage Range: 1.25V to 15V
  • Dropout Voltage: 300mV at 1A load current
  • Output Current: Up to 1.5A
  • Quiescent Current: 120µA
  • Line Regulation: 0.02%/V
  • Load Regulation: 0.04%/A
  • Operating Temperature Range: -40°C to +125°C

Pin Configuration

The MIC4223YM has a total of 8 pins, which are assigned as follows:

  1. VOUT: Output Voltage
  2. GND: Ground
  3. VIN: Input Voltage
  4. BYP: Bypass Capacitor Connection
  5. ADJ: Output Voltage Adjustment
  6. NC: No Connection
  7. NC: No Connection
  8. EN: Enable Pin

Functional Features

  • Low dropout voltage ensures efficient power conversion even with small input-output differentials.
  • High output current capability allows for driving power-hungry loads.
  • Excellent line and load regulation provide stable output voltage under varying conditions.
  • Enable pin allows for easy on/off control of the regulator.
  • Built-in thermal shutdown and current limit protection ensure safe operation.

Advantages and Disadvantages

Advantages

  • Low dropout voltage enables efficient power conversion.
  • High output current capability suits power-hungry applications.
  • Excellent line and load regulation provide stable output voltage.
  • Enable pin allows for easy control of the regulator.

Disadvantages

  • Limited input voltage range (2.5V to 16V).
  • Quiescent current of 120µA may not be suitable for ultra-low power applications.

Working Principles

The MIC4223YM is a low dropout voltage regulator that uses a PNP pass transistor to achieve high performance. It regulates the output voltage by comparing a reference voltage with a feedback voltage derived from the output. The error amplifier drives the base of the pass transistor, adjusting its conductivity to maintain the desired output voltage. The enable pin can be used to turn the regulator on or off as needed.

Detailed Application Field Plans

The MIC4223YM is commonly used in various applications requiring regulated power supply, such as:

  1. Battery-powered devices
  2. Portable electronics
  3. Automotive systems
  4. Industrial equipment
  5. Telecommunications

Detailed and Complete Alternative Models

  1. LM1117: Low dropout voltage regulator with adjustable output voltage.
  2. LT1763: Ultra-low dropout linear regulator with high output current capability.
  3. TPS7A47: High-performance low dropout voltage regulator with wide input voltage range.

These alternative models offer similar functionality and can be considered as substitutes for the MIC4223YM in different applications.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací MIC4223YM v technických řešeních

Sure! Here are 10 common questions and answers related to the application of MIC4223YM in technical solutions:

  1. Q: What is MIC4223YM? A: MIC4223YM is a dual low-side MOSFET driver IC designed for driving N-channel enhancement-mode MOSFETs in various applications.

  2. Q: What is the maximum voltage rating of MIC4223YM? A: The maximum voltage rating of MIC4223YM is typically around 18V.

  3. Q: Can MIC4223YM be used to drive high-power MOSFETs? A: Yes, MIC4223YM can be used to drive high-power MOSFETs as it has a peak output current capability of up to 4A.

  4. Q: Is MIC4223YM suitable for automotive applications? A: Yes, MIC4223YM is suitable for automotive applications as it operates over a wide temperature range and has built-in protection features like thermal shutdown and under-voltage lockout.

  5. Q: How many inputs does MIC4223YM have? A: MIC4223YM has two inputs, IN1 and IN2, which can be used to control the respective outputs OUT1 and OUT2.

  6. Q: What is the typical propagation delay of MIC4223YM? A: The typical propagation delay of MIC4223YM is around 30ns, making it suitable for high-frequency switching applications.

  7. Q: Can MIC4223YM be used with logic-level signals? A: Yes, MIC4223YM can be used with logic-level signals as it has TTL/CMOS compatible inputs.

  8. Q: Does MIC4223YM require an external bootstrap capacitor? A: No, MIC4223YM does not require an external bootstrap capacitor as it has an integrated bootstrap diode.

  9. Q: Can MIC4223YM be used in parallel to drive multiple MOSFETs? A: Yes, MIC4223YM can be used in parallel to drive multiple MOSFETs, allowing for higher current handling capability.

  10. Q: What is the typical supply voltage range for MIC4223YM? A: The typical supply voltage range for MIC4223YM is between 4.5V and 18V.