SC431CSQTRT

Product Overview

• Category: Integrated Circuits
• Use: Voltage Reference
• Characteristics:
  • High precision
  • Low temperature coefficient
  • Low dropout voltage
• Package: SOT-23
• Essence: Precision shunt regulator
• Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

• Output Voltage Range: 1.24V to 6.0V
• Initial Accuracy: ±0.5%
• Temperature Coefficient: 50ppm/°C
• Dropout Voltage: 400mV (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SC431CSQTRT has three pins:

1. Pin 1 (Anode): Connected to the anode of the internal reference diode.
2. Pin 2 (Cathode): Connected to the cathode of the internal reference diode.
3. Pin 3 (Adjust): Adjusts the output voltage by connecting a resistor divider network.

Functional Features

• Provides a stable and accurate voltage reference for various applications.
• Maintains a constant output voltage regardless of input voltage changes.
• Low dropout voltage enables operation with low input voltages.
• Excellent line and load regulation characteristics.
• Built-in thermal shutdown protection.

Advantages

• High precision and stability ensure reliable performance.
• Low temperature coefficient minimizes output voltage variations with temperature changes.
• Small package size allows for space-saving designs.
• Wide operating temperature range makes it suitable for various environments.

Disadvantages

• Limited output voltage range may not be suitable for all applications.
• Requires external resistors for precise voltage adjustment.
• Not suitable for high current applications.

Working Principles

The SC431CSQTRT is a precision shunt regulator that uses an internal reference diode to generate a stable output voltage. The adjust pin allows for fine-tuning of the output voltage by connecting a resistor divider network. It operates by maintaining a constant voltage drop across the internal reference diode, ensuring a stable output voltage regardless of input voltage changes.

Detailed Application Field Plans

The SC431CSQTRT is commonly used in the following applications:

1. Voltage regulators in power supplies and battery-powered devices.
2. Precision measurement equipment requiring accurate voltage references.
3. Automotive electronics for voltage stabilization.
4. Industrial control systems for precise voltage regulation.

Detailed and Complete Alternative Models

• TL431
• LM4040
• REF3030
• MAX6126

These alternative models offer similar functionality and can be considered as substitutes for the SC431CSQTRT in various applications.

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