AZ78L05HTR-G1

Product Overview

• Category: Integrated Circuit
• Use: Voltage Regulator
• Characteristics: Low Dropout, Positive Fixed Voltage Regulator
• Package: SOT-89
• Essence: Linear Regulator
• Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

• Input Voltage: Up to 35V
• Output Voltage: 5V
• Output Current: Up to 100mA
• Dropout Voltage: 2V (maximum)
• Operating Temperature Range: -40°C to +125°C
• Line Regulation: ±0.2% (typical)
• Load Regulation: ±0.4% (typical)
• Quiescent Current: 5mA (maximum)

Detailed Pin Configuration

The AZ78L05HTR-G1 has three pins:

1. Input (IN): This pin is used to connect the input voltage, typically ranging from 7V to 35V.
2. Ground (GND): This pin is connected to the ground or reference voltage.
3. Output (OUT): The regulated output voltage of 5V is obtained from this pin.

Functional Features

• Provides a stable and regulated output voltage of 5V.
• Low dropout voltage ensures efficient operation even with low input-output voltage differentials.
• Built-in thermal shutdown protection prevents damage due to excessive temperature.
• Short-circuit current limiting protects the device and connected components from damage in case of a short circuit.
• Reverse polarity protection safeguards against accidental reverse connection.

Advantages and Disadvantages

Advantages: - Compact SOT-89 package allows for easy integration into various electronic circuits. - Wide operating temperature range makes it suitable for harsh environments. - Low dropout voltage minimizes power dissipation and improves efficiency. - Excellent line and load regulation ensures a stable output voltage.

Disadvantages: - Limited output current capability (up to 100mA) may not be sufficient for high-power applications. - Requires external capacitors for stability, adding to the overall component count.

Working Principles

The AZ78L05HTR-G1 is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage obtained from a voltage divider network. Any difference between the two voltages is amplified and used to control the pass transistor, adjusting its resistance to maintain a constant output voltage of 5V.

Detailed Application Field Plans

The AZ78L05HTR-G1 finds applications in various electronic devices and systems, including but not limited to:

1. Battery-powered devices: Provides a stable 5V supply for microcontrollers, sensors, and other low-power components.
2. Automotive electronics: Used in automotive modules, infotainment systems, and lighting circuits.
3. Industrial control systems: Suitable for powering analog and digital circuits in industrial automation and control applications.
4. Consumer electronics: Can be utilized in audio/video equipment, portable devices, and home appliances.
5. Telecommunications: Used in communication devices, routers, and networking equipment.

Detailed and Complete Alternative Models

1. LM7805: A widely used 5V linear voltage regulator available in various packages.
2. MC78L05: Another popular 5V regulator with similar specifications and pin configuration.
3. LP2950: Low-power voltage regulator with a low quiescent current and adjustable output voltage.
4. NCP1117: High-current linear voltage regulator capable of delivering up to 1A of output current.

These alternative models offer similar functionality and can be considered as substitutes for the AZ78L05HTR-G1 depending on specific requirements and availability.

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