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SPX1117M3-L-3-3/TR
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SPX1117M3-L-3-3/TR

Overview

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

Specifications

  • Input Voltage Range: 4.75V to 15V
  • Output Voltage: 3.3V
  • Dropout Voltage: 1.2V (typical)
  • Maximum Output Current: 800mA
  • Line Regulation: ±0.2% (typical)
  • Load Regulation: ±0.4% (typical)
  • Quiescent Current: 5mA (typical)
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The SPX1117M3-L-3-3/TR voltage regulator has three pins:

  1. Input Pin (VIN): This pin is used to connect the input voltage source.
  2. Output Pin (VOUT): This pin provides the regulated output voltage of 3.3V.
  3. Ground Pin (GND): This pin is connected to the ground reference.

Functional Features

  • Low dropout voltage ensures efficient power conversion.
  • Fixed output voltage eliminates the need for external resistors.
  • Excellent line and load regulation for stable output voltage.
  • Thermal shutdown and current limit protection features.
  • SOT-223 package allows for easy mounting and heat dissipation.

Advantages and Disadvantages

Advantages: - Low dropout voltage enables operation with low input voltages. - Fixed output voltage simplifies circuit design. - Good line and load regulation for stable performance. - Thermal shutdown and current limit protection enhance reliability. - Compact SOT-223 package facilitates space-constrained applications.

Disadvantages: - Limited maximum output current of 800mA. - Quiescent current of 5mA may be relatively high for low-power applications.

Working Principles

The SPX1117M3-L-3-3/TR is a linear voltage regulator that operates by maintaining a constant voltage difference between the input and output pins. It utilizes a pass transistor to regulate the output voltage based on the feedback mechanism. The dropout voltage is minimized to ensure efficient power conversion, allowing the device to operate with low input voltages.

Detailed Application Field Plans

The SPX1117M3-L-3-3/TR voltage regulator finds applications in various fields, including:

  1. Consumer Electronics: Power management in portable devices, such as smartphones, tablets, and digital cameras.
  2. Industrial Automation: Voltage regulation for control systems, sensors, and actuators.
  3. Automotive: Power supply for automotive electronics, including infotainment systems and lighting modules.
  4. Telecommunications: Voltage regulation in networking equipment, routers, and modems.
  5. Renewable Energy: Power management in solar panels, wind turbines, and energy storage systems.

Detailed and Complete Alternative Models

  1. LM1117-3.3: A popular alternative with similar specifications and pin configuration.
  2. LT1763-3.3: Offers lower dropout voltage and higher maximum output current.
  3. MCP1700-3302E: Low-cost alternative with comparable performance characteristics.
  4. TPS79633: Provides adjustable output voltage with similar dropout characteristics.
  5. MAX6033: Ultra-low quiescent current alternative suitable for battery-powered applications.

(Note: This list is not exhaustive and other alternatives may exist.)

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Listen Sie 10 häufige Fragen und Antworten im Zusammenhang mit der Anwendung von SPX1117M3-L-3-3/TR in technischen Lösungen auf

  1. What is the input voltage range for SPX1117M3-L-3-3/TR?
    - The input voltage range for SPX1117M3-L-3-3/TR is 4.75V to 16V.

  2. What is the output voltage of SPX1117M3-L-3-3/TR?
    - The output voltage of SPX1117M3-L-3-3/TR is 3.3V.

  3. What is the maximum output current of SPX1117M3-L-3-3/TR?
    - The maximum output current of SPX1117M3-L-3-3/TR is 800mA.

  4. Is SPX1117M3-L-3-3/TR suitable for low dropout applications?
    - Yes, SPX1117M3-L-3-3/TR is suitable for low dropout applications.

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

  6. Does SPX1117M3-L-3-3/TR require an external capacitor for stability?
    - Yes, SPX1117M3-L-3-3/TR requires an external capacitor for stability.

  7. Can SPX1117M3-L-3-3/TR operate in a wide temperature range?
    - Yes, SPX1117M3-L-3-3/TR can operate in a wide temperature range from -40°C to 125°C.

  8. Is SPX1117M3-L-3-3/TR available in a SOT-223 package?
    - Yes, SPX1117M3-L-3-3/TR is available in a SOT-223 package.

  9. What is the typical quiescent current of SPX1117M3-L-3-3/TR?
    - The typical quiescent current of SPX1117M3-L-3-3/TR is 5mA.

  10. Can SPX1117M3-L-3-3/TR be used in battery-powered applications?
    - Yes, SPX1117M3-L-3-3/TR can be used in battery-powered applications.