AP4313UKTR-G1

Product Overview

• Category: Integrated Circuit
• Use: Voltage Reference
• Characteristics: High precision, low dropout voltage, adjustable output
• Package: SOT-23-3
• Essence: The AP4313UKTR-G1 is a voltage reference IC that provides a stable and accurate voltage output for various applications.
• Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

• Input Voltage Range: 2.5V to 36V
• Output Voltage Range: 1.24V to 20V
• Reference Voltage Accuracy: ±1%
• Dropout Voltage: 0.4V (typical)
• Quiescent Current: 120µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AP4313UKTR-G1 has three pins in the SOT-23-3 package:

1. Cathode (K): Connected to the ground or negative terminal of the circuit.
2. Anode (A): Connected to the input voltage source.
3. Reference (R): Provides the stable voltage output.

Functional Features

• Adjustable Output: The AP4313UKTR-G1 allows users to adjust the output voltage according to their specific requirements.
• Low Dropout Voltage: With a low dropout voltage of 0.4V, this IC can operate efficiently even when the input voltage is close to the desired output voltage.
• High Precision: The reference voltage accuracy of ±1% ensures a reliable and precise output voltage.

Advantages and Disadvantages

Advantages: - Wide input voltage range allows for versatile applications. - Adjustable output voltage provides flexibility. - Low quiescent current minimizes power consumption. - Small package size enables space-saving designs.

Disadvantages: - Limited output voltage range compared to some other voltage reference ICs. - Higher dropout voltage than certain alternatives.

Working Principles

The AP4313UKTR-G1 is based on the shunt regulator principle. It uses a precision reference voltage and compares it with the input voltage. By adjusting the feedback resistors connected to the reference pin, the output voltage can be set to the desired value. The internal circuitry ensures stability and accuracy of the output voltage.

Detailed Application Field Plans

The AP4313UKTR-G1 finds applications in various fields, including:

1. Power Supply Regulation: It can be used as a voltage reference for regulating the output voltage of power supplies.
2. Battery Charging: The IC can provide a stable reference voltage for battery charging circuits.
3. Sensor Calibration: It is suitable for calibrating sensors that require a precise and stable voltage reference.
4. Audio Amplifiers: The AP4313UKTR-G1 can be utilized in audio amplifiers to maintain a consistent bias voltage.

Detailed and Complete Alternative Models

1. LM4040: This series of voltage references offers similar accuracy and adjustable output options.
2. TL431: A popular shunt regulator IC with a wide range of voltage options and low quiescent current.
3. MAX6126: Provides ultra-high precision voltage reference with low temperature coefficient.

These alternative models offer different features and specifications, allowing users to choose the most suitable option for their specific application requirements.

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