AZ78L08RTR-G1

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Fixed output voltage of 8V - Low dropout voltage - High ripple rejection ratio - Thermal shutdown protection - Short circuit current limiting - Output current up to 100mA

Package: SOT-89

Essence: The AZ78L08RTR-G1 is a voltage regulator IC that provides a fixed output voltage of 8V. It is designed to regulate and stabilize the input voltage to ensure a constant output voltage, even when the input voltage fluctuates.

Packaging/Quantity: The AZ78L08RTR-G1 is available in a SOT-89 package. Each package contains one unit of the IC.

Specifications

• Input Voltage Range: 10V - 30V
• Output Voltage: 8V ±5%
• Dropout Voltage: 2V (typical)
• Ripple Rejection Ratio: 60dB (typical)
• Quiescent Current: 4mA (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The AZ78L08RTR-G1 has three pins:

1. Input (IN): This pin is connected to the input voltage source.
2. Ground (GND): This pin is connected to the ground or reference voltage.
3. Output (OUT): This pin provides the regulated output voltage of 8V.

Functional Features

• Fixed Output Voltage: The AZ78L08RTR-G1 maintains a constant output voltage of 8V, regardless of variations in the input voltage.
• Low Dropout Voltage: The IC has a low dropout voltage, ensuring efficient regulation even when the input voltage is close to the output voltage.
• High Ripple Rejection Ratio: It offers high ripple rejection, minimizing the impact of AC voltage fluctuations on the output.
• Thermal Shutdown Protection: The IC includes thermal shutdown protection to prevent damage due to excessive heat.
• Short Circuit Current Limiting: It has built-in short circuit current limiting to protect the IC and connected components from excessive current flow.

Advantages and Disadvantages

Advantages: - Provides a stable output voltage - Low dropout voltage ensures efficient regulation - High ripple rejection ratio for improved performance - Thermal shutdown protection prevents overheating - Short circuit current limiting protects the IC and connected components

Disadvantages: - Limited output current capacity (up to 100mA) - Fixed output voltage may not be suitable for all applications

Working Principles

The AZ78L08RTR-G1 is a linear voltage regulator that uses a series pass transistor to regulate the output voltage. It compares the output voltage with a reference voltage and adjusts the pass transistor's resistance to maintain a constant output voltage. When the input voltage exceeds the desired output voltage, the excess voltage is dissipated as heat.

Detailed Application Field Plans

The AZ78L08RTR-G1 can be used in various applications where a stable 8V power supply is required. Some common application fields include: - Consumer electronics - Industrial control systems - Automotive electronics - Power management circuits - Battery-powered devices

Detailed and Complete Alternative Models

• LM7808: This is a popular alternative model from Texas Instruments with similar specifications and pin configuration.
• MC78L08: Another alternative model from ON Semiconductor, offering comparable performance and compatibility.

These alternative models can be considered based on specific requirements and availability.

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