Exar Corporation
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SPX1587AT-L/MTR

SPX1587AT-L/MTR

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Voltage Regulator
  • Characteristics: High-performance, low dropout voltage regulator
  • Package: TO-220, 3-pin package
  • Essence: Provides a stable output voltage for various electronic devices
  • Packaging/Quantity: Available in reels of 1000 units

Specifications

  • Input Voltage Range: 4.5V to 7V
  • Output Voltage Range: 1.25V to 5.5V
  • Output Current: Up to 3A
  • Dropout Voltage: 1.2V (typical)
  • Line Regulation: 0.05% (typical)
  • Load Regulation: 0.1% (typical)
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The SPX1587AT-L/MTR has 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 accuracy and stability in regulating output voltage.
  • Low dropout voltage ensures efficient power conversion.
  • Overcurrent and thermal protection mechanisms.
  • Fast transient response to load variations.
  • Adjustable output voltage using external resistors.

Advantages and Disadvantages

Advantages: - High-performance voltage regulation. - Wide input voltage range. - Robust protection features. - Suitable for various electronic applications. - Easy to use and integrate into circuits.

Disadvantages: - Relatively high dropout voltage compared to some newer models. - Limited output current capacity for high-power applications.

Working Principles

The SPX1587AT-L/MTR is a linear voltage regulator that operates by comparing the output voltage to a reference voltage. It adjusts the resistance in the internal circuitry to maintain a stable output voltage, regardless of input voltage variations or load changes. The dropout voltage is the minimum voltage required for the regulator to function correctly.

Detailed Application Field Plans

The SPX1587AT-L/MTR is commonly used in various electronic devices and applications, including:

  1. Power Supplies: Provides regulated voltage for microcontrollers, sensors, and other components.
  2. Battery-Powered Systems: Ensures stable voltage levels for portable devices.
  3. Automotive Electronics: Regulates voltage for automotive control units and infotainment systems.
  4. Industrial Control Systems: Used in PLCs, motor drives, and instrumentation equipment.
  5. Telecommunications: Voltage regulation for communication devices and network infrastructure.

Detailed and Complete Alternative Models

  1. LM317: A popular adjustable voltage regulator with similar specifications.
  2. LT1084: High-current, low dropout voltage regulator suitable for power-hungry applications.
  3. LM1117: Low dropout voltage regulator available in various fixed output voltages.

These alternative models offer different features and performance characteristics, allowing users to choose the most suitable option for their specific requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací SPX1587AT-L/MTR v technických řešeních

  1. What is the input voltage range for SPX1587AT-L/MTR?
    - The input voltage range for SPX1587AT-L/MTR is 2.5V to 16V.

  2. What is the output voltage accuracy of SPX1587AT-L/MTR?
    - The output voltage accuracy of SPX1587AT-L/MTR is ±2%.

  3. Can SPX1587AT-L/MTR handle high current loads?
    - Yes, SPX1587AT-L/MTR can handle high current loads up to 3A.

  4. Is SPX1587AT-L/MTR suitable for automotive applications?
    - Yes, SPX1587AT-L/MTR is suitable for automotive applications.

  5. Does SPX1587AT-L/MTR require an external heat sink?
    - It depends on the application and load conditions, but in general, SPX1587AT-L/MTR may require an external heat sink for higher power dissipation.

  6. What is the dropout voltage of SPX1587AT-L/MTR?
    - The dropout voltage of SPX1587AT-L/MTR is typically 1.3V at 3A load.

  7. Can SPX1587AT-L/MTR operate in a wide temperature range?
    - Yes, SPX1587AT-L/MTR can operate in a wide temperature range from -40°C to 125°C.

  8. Is SPX1587AT-L/MTR available in different package options?
    - Yes, SPX1587AT-L/MTR is available in TO-220 and DDPAK/TO-263 package options.

  9. What are the typical applications for SPX1587AT-L/MTR?
    - Typical applications for SPX1587AT-L/MTR include post-regulation for switching supplies, battery chargers, and instrumentation.

  10. Does SPX1587AT-L/MTR have built-in thermal shutdown protection?
    - Yes, SPX1587AT-L/MTR has built-in thermal shutdown protection to prevent damage from excessive heat.