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SPX3940AM3-L-2-5
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SPX3940AM3-L-2-5

Introduction

The SPX3940AM3-L-2-5 is a voltage regulator belonging to the category of integrated circuits. It is commonly used in electronic devices to regulate and stabilize voltage levels, ensuring consistent and reliable power supply to sensitive components.

Basic Information Overview

  • Category: Integrated Circuit
  • Use: Voltage Regulation
  • Characteristics: High precision, low dropout voltage, thermal shutdown protection
  • Package: TO-263
  • Essence: Ensuring stable voltage supply for electronic devices
  • Packaging/Quantity: Typically available in reels of 250 or 500 units

Specifications

  • Input Voltage Range: 4.5V to 30V
  • Output Voltage: 2.5V
  • Maximum Output Current: 1A
  • Dropout Voltage: 0.5V at 1A
  • Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The SPX3940AM3-L-2-5 features a standard TO-263 package with three pins: 1. Input (VIN): Connects to the input voltage source 2. Ground (GND): Connected to the ground reference 3. Output (VOUT): Provides the regulated output voltage

Functional Features

  • High Precision: Provides accurate and stable output voltage regulation
  • Low Dropout Voltage: Minimizes power loss and heat dissipation
  • Thermal Shutdown Protection: Safeguards the device from overheating

Advantages and Disadvantages

Advantages

  • Reliable voltage regulation
  • Low dropout voltage
  • Thermal protection for enhanced safety

Disadvantages

  • Limited maximum output current (1A)

Working Principles

The SPX3940AM3-L-2-5 operates by comparing the output voltage to a reference voltage and adjusting the pass element to maintain a constant output voltage, compensating for variations in input voltage and load conditions.

Detailed Application Field Plans

This voltage regulator is widely used in various applications, including: - Battery-powered devices - Automotive electronics - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

  • LM2940
  • LT1086
  • ADP3338

In conclusion, the SPX3940AM3-L-2-5 is a versatile voltage regulator with precise regulation capabilities, making it an essential component in numerous electronic devices across different industries.

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10个与SPX3940AM3-L-2-5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 input voltage range for SPX3940AM3-L-2-5?

    • The input voltage range for SPX3940AM3-L-2-5 is 4.75V to 30V.

  2. What is the output voltage of SPX3940AM3-L-2-5?

    • The output voltage of SPX3940AM3-L-2-5 is fixed at 2.5V.

  3. What is the maximum output current of SPX3940AM3-L-2-5?

    • The maximum output current of SPX3940AM3-L-2-5 is 1A.

  4. Does SPX3940AM3-L-2-5 require an external capacitor?

    • Yes, SPX3940AM3-L-2-5 requires an external 10μF tantalum or 22μF ceramic capacitor for stability.

  5. Is SPX3940AM3-L-2-5 suitable for battery-powered applications?

    • Yes, SPX3940AM3-L-2-5 is suitable for battery-powered applications due to its low dropout voltage.

  6. What is the thermal shutdown temperature of SPX3940AM3-L-2-5?

    • The thermal shutdown temperature of SPX3940AM3-L-2-5 is approximately 165°C.

  7. Can SPX3940AM3-L-2-5 be used in automotive applications?

    • Yes, SPX3940AM3-L-2-5 is suitable for automotive applications as it meets AEC-Q100 standards.

  8. What is the typical dropout voltage of SPX3940AM3-L-2-5?

    • The typical dropout voltage of SPX3940AM3-L-2-5 is 300mV at 1A load.

  9. Does SPX3940AM3-L-2-5 have built-in overcurrent protection?

    • Yes, SPX3940AM3-L-2-5 has built-in overcurrent and thermal shutdown protection.

  10. Is SPX3940AM3-L-2-5 available in a surface-mount package?

    • Yes, SPX3940AM3-L-2-5 is available in a SOT-223 surface-mount package for easy integration into PCB designs.