SA78-E3/73 Product Overview

Introduction

The SA78-E3/73 is a versatile electronic component that belongs to the category of voltage regulators. This device is commonly used in various electronic applications to regulate and stabilize voltage levels, ensuring consistent and reliable performance.

Basic Information Overview

• Category: Voltage Regulator
• Use: Stabilizing and regulating voltage levels in electronic circuits
• Characteristics: High precision, low dropout voltage, thermal shutdown protection
• Package: TO-220AB
• Essence: Ensuring stable and consistent voltage output
• Packaging/Quantity: Typically available in reels or tubes containing multiple units

Specifications

The SA78-E3/73 voltage regulator is designed to operate within the following specifications: - Input Voltage Range: 4.75V to 18V - Output Voltage: 3.3V - Maximum Output Current: 1A - Dropout Voltage: 1.3V at 1A - Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The SA78-E3/73 features a standard TO-220AB package with three pins: 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

• High Precision: The voltage regulator offers precise and accurate voltage regulation, ensuring stable performance of connected electronic components.
• Low Dropout Voltage: With a low dropout voltage of 1.3V at 1A, the regulator minimizes power loss and maximizes efficiency.
• Thermal Shutdown Protection: Incorporates thermal shutdown protection to prevent damage from excessive heat, enhancing reliability.

Advantages and Disadvantages

Advantages

• Reliable voltage regulation
• Low dropout voltage for improved efficiency
• Thermal shutdown protection enhances safety and durability

Disadvantages

• Limited maximum output current (1A)
• Requires proper heat dissipation in high-power applications

Working Principles

The SA78-E3/73 operates based on the principle of feedback control, where it compares the actual output voltage to a reference voltage and adjusts the output to maintain a constant voltage level. This is achieved through internal circuitry that continuously monitors and regulates the output voltage.

Detailed Application Field Plans

The SA78-E3/73 finds extensive application in various electronic systems, including but not limited to: - Power supplies - Battery-powered devices - Embedded systems - Consumer electronics - Industrial control systems

Detailed and Complete Alternative Models

For applications requiring different voltage levels or higher current capacities, alternative models such as the SA78-E3/50 (5V output) and SA78-E3/100 (10V output) can be considered. These alternatives offer similar characteristics and package options while catering to specific voltage requirements.

In conclusion, the SA78-E3/73 voltage regulator serves as a crucial component in electronic circuits, providing stable and reliable voltage regulation. Its high precision, low dropout voltage, and thermal shutdown protection make it an ideal choice for a wide range of applications.

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