SPX431LN-L/TR

Product Overview

• Category: Integrated Circuit
• Use: Voltage Reference
• Characteristics: Low Dropout, Precision
• Package: SOT-23
• Essence: Stable voltage reference for precision applications
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Voltage Reference Accuracy: ±1%
• Output Voltage Range: 1.24V to 10V
• Dropout Voltage: 0.6V (typical)
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 120µA (typical)

Detailed Pin Configuration

The SPX431LN-L/TR is a three-pin device with the following pin configuration:

1. VIN - Input Voltage Pin
2. GND - Ground Pin
3. VOUT - Output Voltage Pin

Functional Features

• Provides a stable and accurate voltage reference for precision applications
• Low dropout voltage allows for efficient operation even with low input voltages
• Excellent line and load regulation characteristics ensure consistent performance
• Low quiescent current consumption for power-sensitive applications
• Built-in thermal shutdown protection prevents damage due to excessive temperature

Advantages

• High accuracy and stability make it suitable for precision measurement and control systems
• Low dropout voltage enables operation in low-power scenarios
• Compact SOT-23 package offers space-saving benefits
• Wide operating temperature range allows for use in various environments
• Thermal shutdown protection ensures device safety

Disadvantages

• Limited output voltage range may not be suitable for all applications requiring higher voltages
• Higher cost compared to some alternative models
• Not suitable for high-current applications due to its low current handling capability

Working Principles

The SPX431LN-L/TR is based on a bandgap voltage reference circuit. It utilizes a combination of bipolar and CMOS technologies to achieve high accuracy and stability. The device compares an internal reference voltage with the input voltage and generates a precise output voltage that remains constant over temperature and load variations.

Detailed Application Field Plans

The SPX431LN-L/TR finds applications in various fields, including:

1. Precision measurement instruments
2. Industrial control systems
3. Medical equipment
4. Automotive electronics
5. Portable consumer devices

Detailed and Complete Alternative Models

1. LM4040-N: Low Dropout Voltage Reference, SOT-23 package
2. LT1236: Precision Shunt Voltage Reference, TO-92 package
3. MAX6190: Ultra-Low Quiescent Current Voltage Reference, SOT-23 package
4. REF5025: High-Precision Voltage Reference, SOT-23 package
5. TS431: Adjustable Precision Shunt Regulator, SOT-23 package

These alternative models offer similar functionality and can be considered as substitutes for the SPX431LN-L/TR in specific applications.

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