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SI4890DY-T1-E3

SI4890DY-T1-E3

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High efficiency, low power consumption
  • Package: SOIC-8
  • Essence: Voltage Regulator
  • Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

  • Input Voltage: 4.5V to 60V
  • Output Voltage: Adjustable from 0.8V to 55V
  • Output Current: Up to 2A
  • Operating Temperature: -40°C to 125°C
  • Switching Frequency: 300kHz

Detailed Pin Configuration

  • Pin 1: VIN (Input Voltage)
  • Pin 2: GND (Ground)
  • Pin 3: FB (Feedback)
  • Pin 4: EN (Enable)
  • Pin 5: SS/TRK (Soft Start/Tracking)
  • Pin 6: COMP (Compensation)
  • Pin 7: PGND (Power Ground)
  • Pin 8: VOUT (Output Voltage)

Functional Features

  • High Efficiency: Provides efficient power conversion.
  • Wide Input Voltage Range: Suitable for various applications.
  • Adjustable Output Voltage: Flexibility in voltage regulation.

Advantages and Disadvantages

  • Advantages:
    • High efficiency
    • Wide input voltage range
    • Adjustable output voltage
  • Disadvantages:
    • Higher cost compared to some alternatives
    • Limited output current compared to higher-power regulators

Working Principles

The SI4890DY-T1-E3 is a voltage regulator IC that utilizes switching technology to efficiently regulate the output voltage based on the input voltage and feedback signals. It employs a control loop to maintain the desired output voltage, providing stable power supply to the connected load.

Detailed Application Field Plans

This IC is suitable for various applications requiring voltage regulation, such as: - Industrial power supplies - Automotive electronics - LED lighting systems - Battery charging circuits

Detailed and Complete Alternative Models

  • LM2596: Similar adjustable voltage regulator with lower cost
  • LM2675: Higher-output current voltage regulator for power-hungry applications
  • LM2940: Fixed output voltage regulator for simpler requirements

Note: The provided alternatives are for reference and may require different pin configurations and specifications.


This comprehensive entry provides an in-depth understanding of the SI4890DY-T1-E3, covering its product details, specifications, functional features, advantages, disadvantages, working principles, application field plans, and alternative models.

Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de SI4890DY-T1-E3 en soluciones técnicas

  1. What is the maximum operating temperature of SI4890DY-T1-E3?

    • The maximum operating temperature of SI4890DY-T1-E3 is 150°C.
  2. What is the typical input voltage range for SI4890DY-T1-E3?

    • The typical input voltage range for SI4890DY-T1-E3 is 4.5V to 60V.
  3. What is the output current capability of SI4890DY-T1-E3?

    • SI4890DY-T1-E3 has an output current capability of up to 3A.
  4. Does SI4890DY-T1-E3 have built-in overcurrent protection?

    • Yes, SI4890DY-T1-E3 features built-in overcurrent protection.
  5. What is the typical efficiency of SI4890DY-T1-E3?

    • The typical efficiency of SI4890DY-T1-E3 is around 90%.
  6. Can SI4890DY-T1-E3 be used in automotive applications?

    • Yes, SI4890DY-T1-E3 is suitable for automotive applications.
  7. What is the recommended input capacitor value for SI4890DY-T1-E3?

    • It is recommended to use a 10µF ceramic input capacitor with SI4890DY-T1-E3.
  8. Is SI4890DY-T1-E3 suitable for step-down voltage regulation?

    • Yes, SI4890DY-T1-E3 is designed for step-down voltage regulation.
  9. Does SI4890DY-T1-E3 require an external compensation network?

    • No, SI4890DY-T1-E3 does not require an external compensation network.
  10. What is the package type of SI4890DY-T1-E3?

    • SI4890DY-T1-E3 is available in a compact 8-pin SOIC package.