Vishay Semiconductor Diodes Division
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SMPZ3921B-M3/84A
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SMPZ3921B-M3/84A

Product Overview

  • Belongs to: Semiconductor category
  • Use: Power management
  • Characteristics: High efficiency, compact design
  • Package: SMD, 84A package
  • Essence: Efficient power regulation
  • Packaging/Quantity: Bulk packaging, quantity varies

Specifications

  • Input Voltage: 5V - 24V
  • Output Voltage: 3.3V
  • Output Current: 5A
  • Efficiency: 90%
  • Operating Temperature: -40°C to 85°C

Detailed Pin Configuration

  • Pin 1: VIN
  • Pin 2: GND
  • Pin 3: EN
  • Pin 4: FB
  • Pin 5: VOUT

Functional Features

  • Overcurrent protection
  • Thermal shutdown
  • Under-voltage lockout
  • Soft-start functionality

Advantages and Disadvantages

  • Advantages:
    • High efficiency
    • Wide input voltage range
    • Compact size
  • Disadvantages:
    • Limited output current capacity

Working Principles

The SMPZ3921B-M3/84A regulates the input voltage to a stable 3.3V output using a buck converter topology. When enabled, it adjusts the duty cycle of the internal switch to maintain the desired output voltage.

Detailed Application Field Plans

This product is suitable for various applications requiring a regulated 3.3V power supply, such as IoT devices, industrial automation, and consumer electronics.

Detailed and Complete Alternative Models

  • SMPZ3921C-M3/84A: Higher output current version
  • SMPZ3921A-M3/84A: Lower output current version

Note: The above information provides a comprehensive overview of the SMPZ3921B-M3/84A, covering its specifications, features, and application areas.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací SMPZ3921B-M3/84A v technických řešeních

Sure, here are 10 common questions and answers related to the application of SMPZ3921B-M3/84A in technical solutions:

  1. What is the maximum voltage rating for SMPZ3921B-M3/84A?

    • The maximum voltage rating for SMPZ3921B-M3/84A is 100V.

  2. What is the typical forward voltage drop for SMPZ3921B-M3/84A?

    • The typical forward voltage drop for SMPZ3921B-M3/84A is 0.72V at 3A.

  3. What is the maximum continuous forward current for SMPZ3921B-M3/84A?

    • The maximum continuous forward current for SMPZ3921B-M3/84A is 3A.

  4. What is the thermal resistance junction-to-ambient for SMPZ3921B-M3/84A?

    • The thermal resistance junction-to-ambient for SMPZ3921B-M3/84A is 60°C/W.

  5. Can SMPZ3921B-M3/84A be used in automotive applications?

    • Yes, SMPZ3921B-M3/84A is suitable for automotive applications.

  6. What is the operating temperature range for SMPZ3921B-M3/84A?

    • The operating temperature range for SMPZ3921B-M3/84A is -55°C to +150°C.

  7. Is SMPZ3921B-M3/84A RoHS compliant?

    • Yes, SMPZ3921B-M3/84A is RoHS compliant.

  8. What package type does SMPZ3921B-M3/84A come in?

    • SMPZ3921B-M3/84A comes in a SMA package.

  9. What are the typical applications for SMPZ3921B-M3/84A?

    • Typical applications for SMPZ3921B-M3/84A include power supplies, LED lighting, and automotive systems.

  10. Does SMPZ3921B-M3/84A have any special handling or storage requirements?

    • SMPZ3921B-M3/84A should be stored in an anti-static bag and handled with appropriate ESD precautions to avoid damage.

I hope these questions and answers are helpful! Let me know if you need further assistance.