AZ78L09ZTR-E1

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low dropout, fixed voltage output
• Package: TO-252-3 (DPAK)
• Essence: Linear voltage regulator
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 10V to 35V
• Output Voltage: 9V
• Output Current: 100mA
• Dropout Voltage: 2V (maximum)
• Line Regulation: ±0.5%
• Load Regulation: ±1%
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The AZ78L09ZTR-E1 IC has three pins:

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

Functional Features

• Low dropout voltage ensures efficient regulation even with low input-output differentials.
• Fixed 9V output voltage provides a stable power supply for various applications.
• Excellent line and load regulation characteristics ensure consistent performance.
• Thermal shutdown and current limit protection features enhance device reliability.

Advantages

• Compact TO-252-3 package allows for easy integration into space-constrained designs.
• Wide operating temperature range enables usage in extreme environments.
• Low dropout voltage minimizes power dissipation and improves efficiency.
• High accuracy and stability of the output voltage ensure reliable operation.

Disadvantages

• Limited output current capability restricts its use in high-power applications.
• Requires external capacitors for stability, adding complexity to the circuit design.

Working Principles

The AZ78L09ZTR-E1 is a linear voltage regulator that utilizes a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage, adjusting the pass transistor's resistance to maintain a constant output voltage.

Detailed Application Field Plans

The AZ78L09ZTR-E1 is commonly used in various electronic devices and systems, including:

1. Battery-powered devices: Provides a stable power supply for portable electronics.
2. Automotive applications: Regulates voltage for automotive sensors and control modules.
3. Industrial equipment: Ensures reliable power for control circuits and sensors.
4. Communication systems: Used in voltage regulation for wireless communication modules.
5. Consumer electronics: Provides regulated power for audio/video equipment and appliances.

Detailed and Complete Alternative Models

1. LM7809: A popular alternative from Texas Instruments with similar specifications.
2. MC78L09: Another alternative from ON Semiconductor offering comparable performance.
3. LT1086: A higher current alternative from Linear Technology with adjustable output.

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