Vishay Siliconix
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SI4904DY-T1-E3
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SI4904DY-T1-E3

Product Overview

  • Category: Integrated Circuit
  • 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: 2.5V to 6.5V
  • Output Voltage: 0.8V to 5.5V
  • Output Current: 3A
  • Switching Frequency: 1.2MHz
  • Operating Temperature: -40°C to 125°C

Detailed Pin Configuration

  1. VIN (Pin 1)
  2. GND (Pin 2)
  3. FB (Pin 3)
  4. EN (Pin 4)
  5. SW (Pin 5)
  6. PGND (Pin 6)
  7. SS/TRK (Pin 7)
  8. VOUT (Pin 8)

Functional Features

  • Integrated high-side and low-side MOSFETs
  • Adjustable output voltage
  • Overcurrent protection
  • Thermal shutdown protection
  • Soft-start capability

Advantages and Disadvantages

Advantages: - High efficiency - Wide input voltage range - Compact package size

Disadvantages: - Limited output current compared to some alternatives - Higher cost compared to linear regulators

Working Principles

The SI4904DY-T1-E3 is a synchronous buck regulator that efficiently converts a higher input voltage to a lower output voltage. It uses pulse-width modulation (PWM) to control the output voltage and maintain regulation under varying load conditions.

Detailed Application Field Plans

This product is well-suited for various applications including: - Portable electronic devices - Battery-powered systems - Industrial automation equipment - LED lighting

Detailed and Complete Alternative Models

  1. LM2675-ADJ/NOPB
  2. LT1763-3.3
  3. TPS54331DGQR

In conclusion, the SI4904DY-T1-E3 is a versatile and efficient voltage regulator suitable for a wide range of applications, offering high performance and reliability in a compact package.

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10个与SI4904DY-T1-E3在技术解决方案中的应用相关的常见问题及解答

  1. What is the typical application of SI4904DY-T1-E3?

    • The SI4904DY-T1-E3 is commonly used in power management and load switch applications.

  2. What is the maximum voltage rating for SI4904DY-T1-E3?

    • The maximum voltage rating for SI4904DY-T1-E3 is typically around 20V.

  3. What is the maximum current rating for SI4904DY-T1-E3?

    • The maximum continuous current rating for SI4904DY-T1-E3 is typically around 4A.

  4. What are the key features of SI4904DY-T1-E3?

    • Some key features of SI4904DY-T1-E3 include low on-resistance, low threshold voltage, and overcurrent protection.

  5. What are the recommended operating conditions for SI4904DY-T1-E3?

    • The recommended operating conditions for SI4904DY-T1-E3 include a specified input voltage range and ambient temperature range.

  6. Is SI4904DY-T1-E3 suitable for battery-powered applications?

    • Yes, SI4904DY-T1-E3 is suitable for battery-powered applications due to its low on-resistance and efficient power management capabilities.

  7. Does SI4904DY-T1-E3 require any external components for operation?

    • SI4904DY-T1-E3 may require external components such as decoupling capacitors and resistors for proper operation in certain applications.

  8. What are the typical thermal considerations for SI4904DY-T1-E3?

    • Thermal considerations for SI4904DY-T1-E3 include proper heat sinking and thermal management to ensure optimal performance and reliability.

  9. Can SI4904DY-T1-E3 be used in automotive applications?

    • Yes, SI4904DY-T1-E3 can be used in automotive applications, provided it meets the necessary automotive standards and requirements.

  10. Are there any specific layout guidelines for using SI4904DY-T1-E3 in PCB designs?

    • Yes, specific layout guidelines such as minimizing trace lengths and proper grounding should be followed for optimal performance when using SI4904DY-T1-E3 in PCB designs.