SA78AHE3/73 Product Overview

Introduction

The SA78AHE3/73 is a semiconductor product belonging to the category of voltage regulators. This entry provides an overview of its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Voltage Regulator
• Use: The SA78AHE3/73 is used to regulate voltage in electronic circuits, ensuring a stable output voltage regardless of input voltage fluctuations.
• Characteristics: It exhibits high precision, low dropout voltage, and thermal shutdown protection.
• Package: The product is available in a compact surface-mount package.
• Essence: The essence of the SA78AHE3/73 lies in its ability to maintain a constant output voltage, making it suitable for various electronic applications.
• Packaging/Quantity: It is typically packaged in reels containing a specific quantity per reel.

Specifications

The SA78AHE3/73 has the following specifications: - Input Voltage Range: 4.75V to 18V - Output Voltage: 3.3V - Maximum Output Current: 1A - Dropout Voltage: 0.5V at 1A - Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The SA78AHE3/73 features a standard three-pin configuration: 1. Input (VIN): Connects to the input voltage source. 2. Ground (GND): Connected to the ground reference. 3. Output (VOUT): Provides the regulated output voltage.

Functional Features

• Voltage Regulation: Maintains a stable output voltage despite variations in the input voltage.
• Thermal Shutdown Protection: Protects the device from overheating by shutting down when the temperature exceeds a specified threshold.

Advantages and Disadvantages

Advantages

• High precision regulation
• Low dropout voltage
• Thermal shutdown protection enhances reliability

Disadvantages

• Limited maximum output current (1A)
• Restricted input voltage range

Working Principles

The SA78AHE3/73 operates based on the principle of feedback control, where it compares the actual output voltage with a reference voltage and adjusts the internal circuitry to maintain the desired output voltage.

Detailed Application Field Plans

The SA78AHE3/73 finds applications in various electronic systems, including: - Battery-powered devices - Portable electronics - Automotive electronics - Industrial control systems

Detailed and Complete Alternative Models

Some alternative models to the SA78AHE3/73 include: - LM317: A versatile adjustable voltage regulator - LM7805: Fixed 5V voltage regulator - LT1086: High-current adjustable voltage regulator

In conclusion, the SA78AHE3/73 is a reliable voltage regulator with precise regulation and thermal protection, making it suitable for diverse electronic applications.

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