SPX431AN-L/TR

Product Overview

• Category: Integrated Circuit
• Use: Voltage Reference
• Characteristics: High precision, low dropout voltage, low quiescent current
• Package: SOT-23-3
• Essence: Provides a stable reference voltage for various electronic circuits
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Output Voltage: 1.24V
• Initial Accuracy: ±0.5%
• Temperature Coefficient: ±100 ppm/°C
• Dropout Voltage: 0.6V (typical)
• Quiescent Current: 60 µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SPX431AN-L/TR is a three-pin device with the following pin configuration:

• Pin 1: VOUT (Output Voltage)
• Pin 2: GND (Ground)
• Pin 3: VIN (Input Voltage)

Functional Features

• Provides a stable and accurate reference voltage for electronic circuits
• Low dropout voltage allows for efficient operation even with low input voltages
• Low quiescent current minimizes power consumption
• Excellent line and load regulation ensures consistent performance across varying conditions
• Built-in thermal shutdown protection prevents damage due to excessive temperature

Advantages

• High precision and accuracy in providing a stable reference voltage
• Low dropout voltage enables operation in low voltage applications
• Low quiescent current reduces power consumption and extends battery life
• Compact SOT-23-3 package allows for space-saving integration in small electronic devices
• Wide operating temperature range makes it suitable for various environmental conditions

Disadvantages

• Limited output voltage options, only provides a fixed 1.24V reference
• Not suitable for applications requiring adjustable or programmable reference voltages

Working Principles

The SPX431AN-L/TR is based on a bandgap voltage reference circuit. It utilizes a combination of bipolar and CMOS technologies to provide a stable output voltage that remains relatively unaffected by changes in temperature and supply voltage.

Detailed Application Field Plans

The SPX431AN-L/TR is commonly used in various electronic circuits where a precise and stable reference voltage is required. Some typical application fields include:

1. Voltage regulators
2. Power management systems
3. Battery charging circuits
4. Analog-to-digital converters (ADCs)
5. Sensor interfaces
6. Precision instrumentation

Detailed and Complete Alternative Models

• LM4040
• LT1236
• MAX619
• REF102
• TL431

These alternative models offer similar functionality and can be considered as substitutes for the SPX431AN-L/TR in specific applications.

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