SPX1117M3-L-1-5/TR

Overview

Category: Voltage Regulator
Use: Power management
Characteristics: Low dropout, 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: 1.5V
• Dropout voltage: 1.1V at 800mA
• Output current: Up to 800mA
• Line regulation: ±0.2%
• Load regulation: ±0.4%
• Quiescent current: 5mA
• Operating temperature range: -40°C to +125°C

Detailed Pin Configuration

The SPX1117M3-L-1-5/TR has three pins:

1. Input (IN): This pin is used to connect the input voltage.
2. Ground (GND): This pin is connected to the ground reference.
3. Output (OUT): The regulated output voltage is obtained from this pin.

Functional Features

• Low dropout voltage ensures efficient power conversion.
• High accuracy provides precise voltage regulation.
• Thermal shutdown protection prevents damage due to excessive heat.
• Current limit protection safeguards against overcurrent conditions.
• Reverse polarity protection avoids damage caused by incorrect connections.

Advantages and Disadvantages

Advantages: - Low dropout voltage enables operation with low input-output differentials. - High accuracy ensures stable and reliable voltage regulation. - Thermal shutdown and current limit protection enhance device reliability. - Reverse polarity protection prevents accidental damage.

Disadvantages: - Limited output current may not be suitable for high-power applications. - SOT-223 package may require additional cooling measures in certain scenarios.

Working Principles

The SPX1117M3-L-1-5/TR is a linear voltage regulator that operates by maintaining a constant output voltage despite variations in the input voltage and load conditions. It achieves this by using a pass transistor to regulate the output voltage based on a reference voltage. The dropout voltage is minimized, allowing efficient power conversion.

Detailed Application Field Plans

The SPX1117M3-L-1-5/TR 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 infotainment systems, lighting modules, and engine control units.
4. Telecommunications: Voltage regulation in networking equipment, routers, and modems.
5. Renewable Energy: Power management in solar panels, wind turbines, and battery charging systems.

Detailed and Complete Alternative Models

1. LM1117-1.5: Similar specifications and pin configuration, available in different packages.
2. LT1117-1.5: Low dropout linear regulator with comparable performance.
3. MCP1701-1502E/TO: Low quiescent current LDO regulator with 1.5V output.

These alternative models offer similar functionality and can be considered as substitutes for the SPX1117M3-L-1-5/TR.

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