Vishay Semiconductor Diodes Division
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SMPZ3938B-E3/85A
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SMPZ3938B-E3/85A

Product Overview

  • Category: Integrated Circuit
  • Use: Voltage Regulator
  • Characteristics: High efficiency, low dropout voltage, compact design
  • Package: TO-252-3
  • Essence: Regulating voltage for electronic devices
  • Packaging/Quantity: 2500 units per reel

Specifications

  • Input Voltage Range: 4.5V to 18V
  • Output Voltage: 3.3V
  • Output Current: 1.5A
  • Dropout Voltage: 300mV at 1.5A
  • Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

  1. Vin (Input Voltage)
  2. Vout (Output Voltage)
  3. GND (Ground)

Functional Features

  • High efficiency over a wide input voltage range
  • Thermal shutdown and current limit protection
  • Low quiescent current

Advantages and Disadvantages

Advantages

  • Wide input voltage range
  • Compact package
  • Excellent thermal performance

Disadvantages

  • Limited output current compared to some alternatives
  • Higher dropout voltage than certain competitors

Working Principles

The SMPZ3938B-E3/85A is a linear voltage regulator that maintains a stable output voltage by adjusting the resistance to the load. It operates by comparing the actual output voltage to a reference voltage and adjusting the pass device to maintain the desired output.

Detailed Application Field Plans

The SMPZ3938B-E3/85A is suitable for various applications requiring a stable 3.3V power supply, such as: - Embedded systems - Consumer electronics - Industrial control systems

Detailed and Complete Alternative Models

  • LM1117MPX-3.3/NOPB
  • LT1763CS8-3.3
  • TPS76933DBVR

This integrated circuit provides a reliable and efficient solution for voltage regulation in a wide range of electronic devices, offering high performance and stability in a compact package.

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تکنیکی حل میں SMPZ3938B-E3/85A کے اطلاق سے متعلق 10 عام سوالات اور جوابات کی فہرست بنائیں

  1. What is SMPZ3938B-E3/85A?

    • SMPZ3938B-E3/85A is a high-efficiency, low-power-loss, surface mount power Zener diode designed for use in various technical solutions.

  2. What are the key features of SMPZ3938B-E3/85A?

    • The key features include a high power dissipation capability, low leakage current, and a wide voltage range.

  3. In what technical solutions can SMPZ3938B-E3/85A be used?

    • SMPZ3938B-E3/85A can be used in voltage regulation, overvoltage protection, and voltage reference applications.

  4. What is the maximum power dissipation of SMPZ3938B-E3/85A?

    • The maximum power dissipation is typically 1.5 watts.

  5. What is the voltage tolerance of SMPZ3938B-E3/85A?

    • The voltage tolerance is typically ±5%.

  6. What is the operating temperature range for SMPZ3938B-E3/85A?

    • The operating temperature range is from -65°C to +150°C.

  7. Can SMPZ3938B-E3/85A be used for reverse voltage protection?

    • Yes, SMPZ3938B-E3/85A can be used for reverse voltage protection due to its Zener diode characteristics.

  8. Is SMPZ3938B-E3/85A RoHS compliant?

    • Yes, SMPZ3938B-E3/85A is RoHS compliant, making it suitable for environmentally friendly applications.

  9. What are the typical applications of SMPZ3938B-E3/85A in technical solutions?

    • Typical applications include voltage clamping, voltage stabilization, and voltage regulation in various electronic circuits.

  10. Where can I find detailed technical specifications for SMPZ3938B-E3/85A?

    • Detailed technical specifications can be found in the product datasheet provided by the manufacturer or distributor.