SPX1117M3-L-5-0

Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - High output current capability - Thermal shutdown protection - Short circuit current limit - Output voltage accuracy

Package: SOT-223

Essence: The SPX1117M3-L-5-0 is a voltage regulator IC that provides a stable output voltage with low dropout. It is commonly used in various electronic devices to regulate and maintain a constant voltage level.

Packaging/Quantity: The SPX1117M3-L-5-0 is typically sold in reels or tubes, with each reel/tube containing a specific quantity of ICs. The exact packaging and quantity may vary depending on the manufacturer.

Specifications

The SPX1117M3-L-5-0 has the following specifications:

• Input Voltage Range: 2.5V - 10V
• Output Voltage: 5.0V
• Dropout Voltage: 1.2V (maximum)
• Output Current: Up to 1A
• Line Regulation: 0.2% (typical)
• Load Regulation: 0.4% (typical)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The SPX1117M3-L-5-0 has three pins:

1. Input (IN): This pin is connected to the input voltage source.
2. Ground (GND): This pin is connected to the ground reference.
3. Output (OUT): This pin provides the regulated output voltage.

Functional Features

The SPX1117M3-L-5-0 offers the following functional features:

1. Low Dropout Voltage: The IC maintains a stable output voltage even when the input voltage is close to the desired output voltage, resulting in efficient power conversion.
2. High Output Current Capability: It can deliver up to 1A of current, making it suitable for various applications that require a stable power supply.
3. Thermal Shutdown Protection: The IC includes built-in thermal shutdown protection, which prevents overheating and potential damage to the device.
4. Short Circuit Current Limit: In case of a short circuit, the IC limits the current to protect itself and the connected components.
5. Output Voltage Accuracy: The SPX1117M3-L-5-0 provides a high level of output voltage accuracy, ensuring precise regulation.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient power conversion. - High output current capability allows for versatile applications. - Thermal shutdown protection prevents overheating and damage. - Short circuit current limit protects the device and connected components. - Output voltage accuracy ensures precise regulation.

Disadvantages: - Limited input voltage range (2.5V - 10V). - Dropout voltage of 1.2V may not be suitable for ultra-low power applications.

Working Principles

The SPX1117M3-L-5-0 operates based on the principle of linear voltage regulation. It uses a pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. The internal circuitry compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a constant output voltage.

Detailed Application Field Plans

The SPX1117M3-L-5-0 is widely used in various electronic devices and applications, including but not limited to:

1. Power Supplies: It is commonly used in power supply circuits to provide a stable voltage for microcontrollers, sensors, and other components.
2. Battery-Powered Devices: The IC is suitable for battery-powered devices that require a regulated power supply, such as portable audio players, handheld devices, and IoT devices.
3. Automotive Electronics: It finds applications in automotive electronics, including infotainment systems, navigation systems, and engine control units (ECUs).
4. Industrial Control Systems: The SPX1117M3-L-5-0 can be used in industrial control systems to regulate voltages for sensors, actuators, and other components.
5. Telecommunications: It is utilized in telecommunications equipment, such as routers, switches, and base stations, to ensure stable power supply.

Detailed and Complete Alternative Models

1. LM1117: A popular alternative with similar specifications and functionality.
2. LT1117: Another alternative with comparable performance and features.
3. LP2985: A low dropout voltage regulator with adjustable output voltage.
4. MCP1700: An ultra-low quiescent current LDO regulator suitable for battery-powered applications.
5. TPS7A47: A high-performance LDO regulator with excellent line and load regulation.

These alternative models offer similar functionality and can be