KA317LZTA

Product Overview

Category

The KA317LZTA belongs to the category of voltage regulators.

Use

It is primarily used for regulating voltage in electronic circuits.

Characteristics

• Package: TO-92
• Essence: Adjustable positive voltage regulator
• Packaging/Quantity: Available in tape and reel packaging, with a quantity of 2000 units per reel

Specifications

The KA317LZTA has the following specifications:

• Output Voltage Range: 1.25V to 37V
• Output Current: Up to 1.5A
• Dropout Voltage: 1.5V (typical)
• Line Regulation: 0.01%/V (typical)
• Load Regulation: 0.1% (typical)
• Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The KA317LZTA has three pins:

1. ADJ: Adjust pin for setting the desired output voltage.
2. VOUT: Output pin for regulated voltage.
3. VIN: Input pin for the unregulated voltage source.

Functional Features

The KA317LZTA offers the following functional features:

• Adjustable Output: The output voltage can be easily adjusted using an external resistor network connected to the ADJ pin.
• Overcurrent Protection: The device incorporates overcurrent protection to safeguard against excessive current flow.
• Thermal Shutdown: It includes thermal shutdown circuitry to prevent overheating and damage to the device.
• Short Circuit Protection: The regulator is designed to withstand short circuit conditions without causing any harm.

Advantages and Disadvantages

Advantages: - Wide range of adjustable output voltages - High output current capability - Excellent line and load regulation - Built-in protection features

Disadvantages: - Dropout voltage may limit its use in low voltage applications - Requires additional external components for proper operation

Working Principles

The KA317LZTA operates as a linear voltage regulator. It uses a reference voltage and an error amplifier to compare the output voltage with the desired voltage set by the ADJ pin. The device adjusts the pass transistor to maintain a stable output voltage, compensating for any changes in load or input voltage.

Detailed Application Field Plans

The KA317LZTA finds applications in various fields, including:

1. Power Supply Units: It is commonly used in power supply units to regulate the output voltage and provide a stable power source.
2. Battery Charging: The voltage regulator can be employed in battery charging circuits to ensure the correct charging voltage is maintained.
3. Audio Amplifiers: It can be utilized in audio amplifiers to stabilize the voltage supply and prevent distortion.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the KA317LZTA include:

1. LM317T: A popular adjustable positive voltage regulator with similar specifications and pin configuration.
2. LT1085CT: A high current, adjustable linear voltage regulator suitable for demanding applications.
3. LM350T: An adjustable voltage regulator capable of delivering higher output currents.

In conclusion, the KA317LZTA is a versatile voltage regulator offering adjustable output voltages, high current capability, and built-in protection features. Its wide range of applications makes it a valuable component in various electronic circuits.