TC74A3-3.3VAT

Introduction

The TC74A3-3.3VAT is a voltage regulator belonging to the category of electronic components used for regulating voltage in various electronic devices. This entry provides an overview of the product, including 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: Regulating voltage in electronic devices
• Characteristics: Stable output voltage, low dropout voltage, small package size
• Package: SOT-25
• Essence: Regulates input voltage to a stable 3.3V output
• Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

• Input Voltage Range: 4.2V to 16V
• Output Voltage: 3.3V ±2%
• Dropout Voltage: 150mV at 50mA
• Quiescent Current: 75µA (typical)
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

1. VIN: Input Voltage
2. GND: Ground
3. VOUT: Output Voltage

Functional Features

• Low Dropout Voltage: Enables efficient regulation even with small input-output differentials
• Low Quiescent Current: Minimizes power consumption in standby mode
• Thermal Shutdown Protection: Safeguards the device from overheating
• Short-Circuit Protection: Protects the device from damage due to short circuits

Advantages and Disadvantages

Advantages

• Small package size allows for space-efficient integration into electronic designs
• Low dropout voltage ensures efficient regulation even with varying input voltages
• Low quiescent current minimizes power consumption during standby

Disadvantages

• Limited to a maximum input voltage of 16V
• Sensitive to excessive heat due to its small size

Working Principles

The TC74A3-3.3VAT operates by comparing the output voltage to a reference voltage and adjusting the pass transistor to maintain a stable 3.3V output. When the input voltage fluctuates, the regulator adjusts the pass transistor to ensure a consistent output voltage.

Detailed Application Field Plans

The TC74A3-3.3VAT is widely used in various electronic devices, including: - Battery-powered devices - Portable consumer electronics - Embedded systems - IoT devices - Automotive electronics

Detailed and Complete Alternative Models

• LM1117-3.3V: Similar voltage regulator with a TO-220 package
• XC6206P332MR: SMD voltage regulator with a 3.3V output

In conclusion, the TC74A3-3.3VAT is a versatile voltage regulator with a compact package size, making it suitable for a wide range of electronic applications. Its stable output voltage, low dropout voltage, and low quiescent current make it an ideal choice for battery-powered and portable electronic devices.

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