3EZ91D5/TR12 Product Overview

Introduction

The 3EZ91D5/TR12 is a versatile electronic component that belongs to the category of voltage regulators. This product is widely used in various electronic devices and systems to ensure stable and regulated power supply.

Basic Information Overview

• Category: Voltage Regulator
• Use: To regulate and stabilize voltage in electronic circuits
• Characteristics: High precision, low dropout voltage, thermal shutdown protection
• Package: TO-220, SOT-223
• Essence: Ensures consistent and reliable power supply
• Packaging/Quantity: Typically available in reels or tubes containing multiple units

Specifications

• Input Voltage Range: 4.5V to 28V
• Output Voltage Range: 1.25V to 20V
• Output Current: Up to 1.5A
• Dropout Voltage: 0.6V at 1A
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The 3EZ91D5/TR12 typically features three pins: 1. Input (VIN): Connects to the unregulated input voltage 2. Ground (GND): Connected to the ground reference 3. Output (VOUT): Provides the regulated output voltage

Functional Features

• High Precision: Provides accurate and stable output voltage
• Low Dropout Voltage: Minimizes power loss and heat dissipation
• Thermal Shutdown Protection: Safeguards the regulator from overheating

Advantages and Disadvantages

Advantages

• Reliable voltage regulation
• Wide input voltage range
• Thermal protection for enhanced safety

Disadvantages

• Limited maximum output current
• Sensitive to external noise and fluctuations

Working Principles

The 3EZ91D5/TR12 operates on the principle of feedback control, where it compares the actual output voltage to a reference voltage and adjusts the internal circuitry to maintain a constant output.

Detailed Application Field Plans

This voltage regulator is commonly employed in the following applications: - Power supplies for microcontrollers and integrated circuits - Battery-powered devices requiring stable voltage - Automotive electronics - Industrial control systems

Detailed and Complete Alternative Models

Some alternative models to consider include: - LM317: A popular adjustable linear voltage regulator - LM7805: Fixed 5V regulator suitable for various applications - LT1083: High-current adjustable voltage regulator

In conclusion, the 3EZ91D5/TR12 voltage regulator offers precise and reliable voltage regulation for a wide range of electronic applications, despite its limitations in current handling. Its compact package and essential features make it a valuable component in modern electronic designs.

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