KA7805AETU

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Fixed Output, Positive Voltage Regulator
• Package: TO-220, 3-Pin
• Essence: Linear Regulator
• Packaging/Quantity: Tape and Reel, 2,500 units per reel

Specifications

• Input Voltage Range: 7V to 25V
• Output Voltage: +5V
• Output Current: Up to 1A
• Dropout Voltage: 2V (typical)
• Line Regulation: 0.04% (typical)
• Load Regulation: 0.1% (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

1. Input Voltage (VIN)
2. Ground (GND)
3. Output Voltage (VOUT)

Functional Features

• Provides a stable +5V output voltage regardless of input voltage fluctuations.
• Built-in thermal overload protection prevents damage due to excessive heat.
• Short-circuit current limiting protects the device and connected components from damage in case of a short circuit.
• Low quiescent current consumption ensures energy efficiency.

Advantages

• Simple and cost-effective solution for voltage regulation.
• Wide input voltage range allows compatibility with various power sources.
• Compact TO-220 package facilitates easy integration into electronic circuits.
• Excellent line and load regulation ensure stable output voltage under varying conditions.

Disadvantages

• Limited output current capacity may not be suitable for high-power applications.
• Dropout voltage of 2V may result in higher power dissipation and reduced efficiency in low input voltage scenarios.

Working Principles

The KA7805AETU is a linear voltage regulator that utilizes a series pass transistor to regulate the output voltage. It operates by comparing the reference voltage (typically 5.0V) with the feedback voltage obtained from a voltage divider connected to the output. The series pass transistor adjusts its resistance to maintain a constant output voltage, compensating for changes in input voltage and load conditions.

Detailed Application Field Plans

The KA7805AETU is commonly used in various electronic devices and systems that require a stable +5V power supply. Some typical applications include: - Microcontrollers and microprocessors - Digital logic circuits - Audio amplifiers - LED lighting systems - Battery charging circuits

Detailed and Complete Alternative Models

• LM7805: Similar specifications and pin configuration, available in various package options.
• MC7805: Equivalent performance, compatible pinout, alternative manufacturers.
• L78M05: Low dropout voltage variant, suitable for low input voltage applications.

Note: This entry provides an overview of the KA7805AETU voltage regulator. For more detailed information, please refer to the datasheet provided by the manufacturer.

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