SPX1117T-L-3-3/TR

Product Overview

Category

SPX1117T-L-3-3/TR belongs to the category of voltage regulators.

Use

This product is commonly used in electronic circuits to regulate and stabilize voltage levels.

Characteristics

• Voltage regulation: SPX1117T-L-3-3/TR provides a fixed output voltage of 3.3V.
• Low dropout: It operates with a low dropout voltage, ensuring efficient power conversion.
• High accuracy: The voltage regulator offers high precision in maintaining the desired output voltage.
• Thermal protection: It incorporates thermal shutdown circuitry to prevent overheating.
• Current limiting: SPX1117T-L-3-3/TR includes current limit protection to safeguard against excessive current flow.

Package

The SPX1117T-L-3-3/TR comes in a compact TO-252 package, also known as DPAK (Plastic Packaged Power Transistor).

Essence

The essence of SPX1117T-L-3-3/TR lies in its ability to provide a stable and regulated output voltage for various electronic applications.

Packaging/Quantity

This product is typically packaged in reels or tubes, containing a specific quantity per package. Please refer to the manufacturer's specifications for detailed packaging information.

Specifications

• Input Voltage Range: 4.5V - 20V
• Output Voltage: 3.3V
• Output Current: Up to 1A
• Dropout Voltage: 1.2V (maximum)
• Line Regulation: ±0.2% (typical)
• Load Regulation: ±0.4% (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The SPX1117T-L-3-3/TR has three pins:

1. Vin (Input): This pin is used to connect the input voltage source.
2. Vout (Output): The regulated output voltage of 3.3V is obtained from this pin.
3. GND (Ground): This pin is connected to the ground reference.

Functional Features

• Voltage Regulation: SPX1117T-L-3-3/TR maintains a constant output voltage of 3.3V, regardless of input voltage fluctuations.
• Overcurrent Protection: It includes current limit protection to prevent damage due to excessive current flow.
• Thermal Shutdown: The regulator incorporates thermal protection, shutting down operation in case of excessive temperature.

Advantages and Disadvantages

Advantages

• High accuracy in voltage regulation.
• Low dropout voltage ensures efficient power conversion.
• Compact package size for space-constrained applications.
• Built-in overcurrent and thermal protection features.

Disadvantages

• Limited output current capacity (up to 1A).
• Requires an external heat sink for high-power applications.

Working Principles

SPX1117T-L-3-3/TR operates based on the principle of linear voltage regulation. It utilizes a pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. By maintaining a constant voltage drop across the pass transistor, it ensures a stable output voltage of 3.3V.

Detailed Application Field Plans

The SPX1117T-L-3-3/TR finds extensive use in various electronic applications, including but not limited to:

1. Microcontrollers and microprocessors
2. Embedded systems
3. Power supply modules
4. Battery-powered devices
5. Communication equipment
6. Consumer electronics

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to SPX1117T-L-3-3/TR include:

1. LM1117-3.3: A popular voltage regulator with a fixed output voltage of 3.3V.
2. LT1117-3.3: Another reliable option for 3.3V voltage regulation.
3. MCP1700-3302E: A low dropout voltage regulator with a fixed 3.3V output.

These alternative models can be considered based on specific application requirements and availability.

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