AZ78L05ZTR-G1

Product Overview

• Category: Integrated Circuit
• Use: Voltage Regulator
• Characteristics: Low Dropout, Positive Fixed Voltage Regulator
• Package: TO-252 (DPAK)
• Essence: Linear Voltage Regulator
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

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

Detailed Pin Configuration

The AZ78L05ZTR-G1 has three pins:

1. Input Pin (VIN): Connects to the input voltage source.
2. Ground Pin (GND): Connected to the ground reference.
3. Output Pin (VOUT): Provides the regulated output voltage.

Functional Features

• Low dropout voltage ensures efficient regulation even with small input-output differentials.
• Built-in thermal shutdown protection prevents damage due to excessive temperature.
• Short-circuit current limiting protects the device from overcurrent conditions.
• Reverse polarity protection guards against incorrect connections.

Advantages

• Compact TO-252 package allows for easy integration into various electronic circuits.
• Wide operating temperature range makes it suitable for harsh environments.
• Excellent line and load regulation ensure stable output voltage under varying conditions.
• Low quiescent current minimizes power consumption.

Disadvantages

• Limited output current of 100mA may not be sufficient for high-power applications.
• Dropout voltage of 2V may result in higher power dissipation in certain scenarios.

Working Principles

The AZ78L05ZTR-G1 is a linear voltage regulator that maintains a constant output voltage of 5V, regardless of changes in the input voltage or load conditions. It achieves this by using a pass transistor to regulate the voltage drop across it. The device compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain the desired output voltage.

Detailed Application Field Plans

The AZ78L05ZTR-G1 is commonly used in various electronic devices and applications, including:

1. Battery-powered devices: Provides stable 5V supply for microcontrollers, sensors, and other low-power components.
2. Automotive electronics: Regulates voltage for automotive sensors, control modules, and infotainment systems.
3. Industrial equipment: Used in power supplies, motor control circuits, and instrumentation devices.
4. Consumer electronics: Provides regulated voltage for audio/video equipment, home appliances, and portable devices.

Detailed and Complete Alternative Models

• LM7805: Similar linear voltage regulator with a TO-220 package.
• MC78L05: Low-cost alternative with similar specifications.
• LT1763: High-performance LDO regulator with adjustable output voltage.

(Note: This list is not exhaustive and there are several other alternatives available in the market.)

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