SPX1117M3-L-2-5/TR

Overview

Product Category: Voltage Regulator
Use: Power management
Characteristics: Low dropout, high accuracy, low quiescent current
Package: SOT-223
Essence: Linear voltage regulator
Packaging/Quantity: Tape and reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.5V to 16V
• Output Voltage: 2.5V
• Dropout Voltage: 1.1V (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

Pin Configuration

The SPX1117M3-L-2-5/TR has three pins in the SOT-223 package:

1. Input (VIN): Connects to the input voltage source.
2. Ground (GND): Connected to the ground reference.
3. Output (VOUT): Provides the regulated output voltage.

Functional Features

• Low dropout voltage allows for efficient regulation even with small input-output differentials.
• High accuracy ensures precise output voltage regulation.
• Low quiescent current minimizes power consumption when the load is light.
• Overcurrent and thermal protection safeguards the device and connected circuitry.

Advantages

• Wide input voltage range enables flexibility in various applications.
• Excellent line and load regulation ensures stable output voltage under varying conditions.
• Compact SOT-223 package offers space-saving benefits.
• High maximum output current capability supports a wide range of loads.

Disadvantages

• Limited output voltage options, only providing a fixed 2.5V output.
• Dropout voltage may be relatively high for certain low-power applications.

Working Principles

The SPX1117M3-L-2-5/TR is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with a fraction of the output voltage, adjusting the pass transistor's resistance to maintain a stable output voltage. The dropout voltage is the minimum voltage required between the input and output for proper regulation.

Detailed Application Field Plans

The SPX1117M3-L-2-5/TR finds applications in various fields, including:

1. Battery-powered devices: Provides regulated power supply for portable electronics, such as smartphones, tablets, and wearable devices.
2. Industrial equipment: Used in control systems, sensors, and instrumentation requiring stable power sources.
3. Automotive electronics: Suitable for powering microcontrollers, sensors, and other components in automotive applications.
4. Communication systems: Enables reliable power management in routers, switches, and network equipment.
5. Consumer electronics: Used in audio/video equipment, gaming consoles, and set-top boxes.

Alternative Models

Several alternative models with similar specifications and features are available, including:

1. LM1117-2.5: Manufactured by Texas Instruments.
2. LT1117-2.5: Manufactured by Linear Technology.
3. MCP1702-2.5: Manufactured by Microchip Technology.
4. TS1117-2.5: Manufactured by STMicroelectronics.

These alternatives can be considered based on specific requirements and availability.

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