AZ1117R-ADJTRG1

Product Overview

Category: Voltage Regulator
Use: To regulate voltage in electronic circuits
Characteristics: Adjustable output voltage, low dropout voltage, high current capability
Package: TO-252-3 (DPAK)
Essence: Linear voltage regulator
Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.5V to 18V
• Output Voltage Range: 1.25V to 16V
• Dropout Voltage: 1.15V at 800mA
• Output Current: Up to 1A
• Line Regulation: 0.2% typical
• Load Regulation: 0.4% typical
• Quiescent Current: 5mA typical
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The AZ1117R-ADJTRG1 has three pins:

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

Functional Features

• Adjustable output voltage allows flexibility in various applications.
• Low dropout voltage enables efficient regulation even with small input-output differentials.
• High current capability supports demanding loads.
• Excellent line and load regulation ensure stable output voltage under varying conditions.
• Thermal shutdown and current limit protection features enhance device reliability.

Advantages and Disadvantages

Advantages: - Wide input voltage range accommodates diverse power supply sources. - Adjustable output voltage suits a wide range of applications. - Low dropout voltage minimizes power dissipation. - High current capability enables driving power-hungry components. - Good line and load regulation provide stable output voltage.

Disadvantages: - Linear regulators are less efficient compared to switching regulators. - Heat dissipation may be a concern at higher input-output differentials. - Limited output current compared to some other voltage regulator types.

Working Principles

The AZ1117R-ADJTRG1 is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with a fraction of the output voltage, adjusting the pass transistor's resistance to maintain a constant output voltage. The regulator dissipates excess voltage as heat, resulting in a dropout voltage.

Detailed Application Field Plans

The AZ1117R-ADJTRG1 finds applications in various electronic systems, including but not limited to: - Power supplies for microcontrollers and digital circuits - Battery-powered devices requiring regulated voltage - Automotive electronics - Industrial control systems - Audio amplifiers and preamplifiers - Instrumentation and measurement equipment

Detailed and Complete Alternative Models

Some alternative models to the AZ1117R-ADJTRG1 include: - LM317: Adjustable voltage regulator with similar characteristics - LT1086: Low dropout positive adjustable voltage regulator - LM1117: Fixed and adjustable voltage regulators with various output options - LDO50V: Low dropout voltage regulator with high input voltage capability

These alternatives offer similar functionality and can be considered based on specific application requirements.

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