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SPX1117M3-L-1-8/TR
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SPX1117M3-L-1-8/TR

Overview

Category: Voltage Regulator
Use: Power Management
Characteristics: Low Dropout, Low Noise, High Accuracy
Package: SOT-223
Essence: Linear Regulator
Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

  • Input Voltage Range: 2.5V to 10V
  • Output Voltage: 1.8V
  • Output Current: Up to 800mA
  • Dropout Voltage: 1.1V (typical)
  • Line Regulation: 0.05% (typical)
  • Load Regulation: 0.1% (typical)
  • Quiescent Current: 75µA (typical)
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The SPX1117M3-L-1-8/TR has three pins:

  1. Input (IN): Connects to the input voltage source.
  2. Output (OUT): Provides the regulated output voltage.
  3. Ground (GND): Common ground reference for the regulator.

Functional Features

  • Low dropout voltage ensures efficient power conversion.
  • Low noise output for sensitive applications.
  • High accuracy in regulating the output voltage.
  • Overcurrent and thermal protection for safe operation.
  • Fast transient response for sudden load changes.

Advantages and Disadvantages

Advantages: - Wide input voltage range allows flexibility in power supply selection. - Low quiescent current minimizes power consumption. - Small package size enables space-saving designs. - Excellent line and load regulation for stable output voltage.

Disadvantages: - Limited output current may not be suitable for high-power applications. - Dropout voltage can cause power dissipation and heat generation.

Working Principles

The SPX1117M3-L-1-8/TR is a linear regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage from a voltage divider network connected to the output. The pass transistor adjusts its resistance to maintain a constant output voltage, compensating for changes in input voltage and load conditions.

Detailed Application Field Plans

The SPX1117M3-L-1-8/TR is commonly used in various applications, including:

  1. Battery-Powered Devices: Provides stable power supply for portable electronics such as smartphones, tablets, and wearable devices.
  2. Embedded Systems: Regulates voltage for microcontrollers, sensors, and other components in embedded systems.
  3. Industrial Control Systems: Ensures reliable power for control boards, motor drivers, and communication modules in industrial automation.
  4. Telecommunications: Used in networking equipment, routers, and switches to maintain consistent voltage levels.
  5. Automotive Electronics: Provides regulated power for automotive infotainment systems, lighting controls, and engine management units.

Detailed and Complete Alternative Models

  1. LM1117-1.8: Similar specifications and pin configuration, available in different package options.
  2. LT1763-1.8: Low dropout voltage regulator with adjustable output voltage.
  3. TPS7A1801-SP: Radiation-hardened voltage regulator for space applications.

These alternative models offer similar functionality and can be considered as substitutes for the SPX1117M3-L-1-8/TR in specific applications.

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Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van SPX1117M3-L-1-8/TR in technische oplossingen

  1. What is the maximum input voltage for SPX1117M3-L-1-8/TR?
    - The maximum input voltage for SPX1117M3-L-1-8/TR is 15V.

  2. What is the output voltage of SPX1117M3-L-1-8/TR?
    - The output voltage of SPX1117M3-L-1-8/TR is 1.8V.

  3. What is the typical dropout voltage of SPX1117M3-L-1-8/TR?
    - The typical dropout voltage of SPX1117M3-L-1-8/TR is 1V at 800mA load current.

  4. What is the maximum output current of SPX1117M3-L-1-8/TR?
    - The maximum output current of SPX1117M3-L-1-8/TR is 800mA.

  5. What is the operating temperature range of SPX1117M3-L-1-8/TR?
    - The operating temperature range of SPX1117M3-L-1-8/TR is -40°C to 125°C.

  6. Is SPX1117M3-L-1-8/TR suitable for battery-powered applications?
    - Yes, SPX1117M3-L-1-8/TR is suitable for battery-powered applications due to its low dropout voltage.

  7. Can SPX1117M3-L-1-8/TR be used in automotive electronics?
    - Yes, SPX1117M3-L-1-8/TR is suitable for use in automotive electronics as it can withstand harsh environmental conditions.

  8. Does SPX1117M3-L-1-8/TR require an external capacitor for stability?
    - Yes, SPX1117M3-L-1-8/TR requires an external capacitor for stability and proper operation.

  9. What is the package type of SPX1117M3-L-1-8/TR?
    - SPX1117M3-L-1-8/TR comes in a SOT-223 package.

  10. Is SPX1117M3-L-1-8/TR RoHS compliant?
    - Yes, SPX1117M3-L-1-8/TR is RoHS compliant, making it suitable for environmentally friendly designs.