SC431LC5SK.5TRT

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Reference
• Characteristics:
  • Low Dropout Voltage
  • High Accuracy
  • Low Quiescent Current
• Package: SOT-23-5
• Essence: Precision Adjustable Shunt Regulator
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Output Voltage Range: 1.24V to 16V
• Initial Accuracy: ±0.5%
• Temperature Coefficient: ±50ppm/°C
• Quiescent Current: 120µA (typical)
• Dropout Voltage: 400mV (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SC431LC5SK.5TRT package has five pins arranged as follows:

```

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| | --| 1 |-- ADJ --| 2 |-- GND --| 3 |-- NC --| 4 |-- NC --| 5 |-- VREF |____| ```

1. ADJ: Adjust pin for setting the output voltage.
2. GND: Ground reference pin.
3. NC: No connection.
4. NC: No connection.
5. VREF: Output voltage reference pin.

Functional Features

• Precision voltage reference with adjustable output.
• Low dropout voltage allows operation in low input voltage conditions.
• High accuracy ensures precise voltage regulation.
• Low quiescent current minimizes power consumption.
• Wide operating temperature range for various environments.

Advantages and Disadvantages

Advantages: - Precise and stable output voltage. - Adjustable output voltage range. - Low dropout voltage for efficient operation. - Low quiescent current for power-saving applications. - Small package size for space-constrained designs.

Disadvantages: - Limited maximum output voltage of 16V. - Requires external resistors for voltage adjustment.

Working Principles

The SC431LC5SK.5TRT is a precision adjustable shunt regulator. It operates by comparing the reference voltage at the VREF pin with the voltage across the ADJ pin and GND. By adjusting the resistance between the ADJ pin and GND, the output voltage can be set within the specified range. The internal circuitry ensures high accuracy and stability of the output voltage.

Detailed Application Field Plans

The SC431LC5SK.5TRT is commonly used in various electronic systems that require precise voltage regulation. Some application fields include:

1. Power Supplies: Used as a voltage reference in linear regulators to provide stable output voltages.
2. Battery Management: Ensures accurate voltage monitoring and control in battery charging circuits.
3. Industrial Control Systems: Provides precise voltage references for analog signal conditioning circuits.
4. Automotive Electronics: Used in automotive voltage regulators and sensor circuits for reliable performance.
5. Consumer Electronics: Utilized in audio amplifiers, LCD displays, and other voltage-sensitive devices.

Detailed and Complete Alternative Models

Some alternative models to SC431LC5SK.5TRT with similar functionality are:

1. TL431: Adjustable Precision Shunt Regulator
2. LM4040: Precision Micropower Shunt Voltage Reference
3. MAX6126: Ultra-High-Precision Voltage Reference
4. REF3030: Low-Noise, Very Low Drift Precision Voltage Reference
5. LT1461: Micropower Precision Series Reference

These alternative models offer comparable features and can be considered based on specific application requirements.

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