SPX3819R2-L-1-2/TR

Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

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

Package: SOT-23-5

Essence: The SPX3819R2-L-1-2/TR is a voltage regulator IC that provides a stable output voltage for various electronic devices.

Packaging/Quantity: The SPX3819R2-L-1-2/TR is typically sold in reels of 3000 units.

Specifications

• Input Voltage Range: 2.5V to 6.0V
• Output Voltage Range: 1.2V
• Dropout Voltage: 200mV at 100mA
• Quiescent Current: 50µA
• Output Current: 500mA
• Line Regulation: ±0.2%
• Load Regulation: ±0.4%
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SPX3819R2-L-1-2/TR has 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 efficient power conversion even with small input-output differentials.
• Low quiescent current minimizes power consumption during standby or idle modes.
• High output voltage accuracy provides precise voltage regulation for sensitive electronic components.
• Thermal shutdown protection prevents the IC from overheating and damaging itself or connected devices.
• Short circuit current limit protects the IC and connected devices from excessive current flow during a short circuit event.

Advantages and Disadvantages

Advantages: - Compact SOT-23-5 package allows for easy integration into space-constrained designs. - Wide input voltage range enables compatibility with various power sources. - High output current capability supports the operation of power-hungry devices. - Excellent line and load regulation ensure stable output voltage under different operating conditions.

Disadvantages: - Limited output voltage options restrict its use in applications requiring different output voltages. - The NC pin may cause confusion during circuit design if not properly understood.

Working Principles

The SPX3819R2-L-1-2/TR is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage derived from the output. Any difference between the two voltages is amplified and used to adjust the pass transistor, maintaining a constant output voltage.

Detailed Application Field Plans

The SPX3819R2-L-1-2/TR can be used in various applications, including but not limited to: - Battery-powered devices - Portable electronic devices - Automotive electronics - Industrial control systems - Communication equipment

Detailed and Complete Alternative Models

Some alternative models to the SPX3819R2-L-1-2/TR include: - LM1117-3.3 - MCP1700-3302E/TO - TS2940CZ-3.3

These models offer similar functionality and can be considered as alternatives based on specific requirements and availability.

In conclusion, the SPX3819R2-L-1-2/TR is a versatile voltage regulator IC with excellent performance characteristics. Its compact size, low dropout voltage, and thermal protection make it suitable for a wide range of applications. However, its limited output voltage options and the presence of the NC pin should be taken into consideration during circuit design.