SPX3819M5-L/TR

Product Overview

• Category: Voltage Regulator
• Use: Power management
• Characteristics: Low dropout, low quiescent current
• Package: SOT-23-5
• Essence: Linear voltage regulator
• Packaging/Quantity: Tape and reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.5V to 6.0V
• Output Voltage Range: 1.2V to 5.5V
• Output Current: Up to 500mA
• Dropout Voltage: 200mV typical at 500mA load
• Quiescent Current: 75µA typical
• Line Regulation: 0.05% typical
• Load Regulation: 0.1% typical
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SPX3819M5-L/TR has a SOT-23-5 package with the following pin configuration:

1. GND (Ground)
2. VIN (Input Voltage)
3. VOUT (Output Voltage)
4. NC (No Connection)
5. EN (Enable)

Functional Features

• Low dropout voltage ensures stable output even with small input-output differentials.
• Low quiescent current minimizes power consumption in standby mode.
• Excellent line and load regulation for accurate voltage control.
• Thermal shutdown and current limit protection for enhanced reliability.

Advantages and Disadvantages

Advantages: - Wide input voltage range allows flexibility in various applications. - High output current capability enables driving power-hungry loads. - Small package size makes it suitable for space-constrained designs. - Low dropout voltage ensures efficient power conversion.

Disadvantages: - Limited output voltage range may not be suitable for all applications. - SOT-23-5 package may require additional thermal management in high-power applications.

Working Principles

The SPX3819M5-L/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 despite changes in input voltage and load conditions.

Detailed Application Field Plans

The SPX3819M5-L/TR is commonly used in various applications, including but not limited to:

1. Battery-powered devices: Provides regulated power supply for portable electronics, such as smartphones, tablets, and wearable devices.
2. Industrial equipment: Ensures stable voltage for sensors, actuators, and control systems in industrial automation.
3. Automotive electronics: Regulates power for infotainment systems, lighting modules, and other automotive components.
4. Communication systems: Maintains constant voltage for wireless routers, modems, and network switches.
5. Consumer electronics: Powers audio/video equipment, gaming consoles, and home appliances.

Detailed and Complete Alternative Models

1. LM1117-ADJ: Adjustable linear voltage regulator with similar specifications and pin configuration.
2. XC6206P332MR: Fixed 3.3V linear voltage regulator in a SOT-23-5 package.
3. LT1763CS8-3.3: Low dropout linear regulator with a fixed 3.3V output voltage in an SO-8 package.
4. MCP1700T-3302E/TT: Low quiescent current linear voltage regulator with a fixed 3.3V output in a SOT-23-3 package.
5. TPS79633DCQR: High-performance, low dropout voltage regulator with a fixed 3.3V output in a SOT-223 package.

(Note: The above list is not exhaustive and serves as examples of alternative models.)

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