SMPZ3931B-E3/84A

Introduction

The SMPZ3931B-E3/84A is a crucial component in the field of electronic devices, offering a wide range of applications and features. This entry will provide an in-depth overview of this 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: Electronic Components
• Use: Voltage Regulator
• Characteristics: High precision, low dropout voltage, small package size
• Package: SOT-223
• Essence: Regulating voltage for stable operation of electronic circuits
• Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

• Input Voltage Range: 4.5V to 18V
• Output Voltage Range: 1.25V to 16V
• Output Current: 500mA
• Dropout Voltage: 0.6V at 500mA
• Line Regulation: 0.2% typical
• Load Regulation: 0.4% typical
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

1. Input (VIN)
2. Ground (GND)
3. Output (VOUT)

Functional Features

• High Precision: Provides accurate and stable output voltage regulation
• Low Dropout Voltage: Ensures efficient operation even with low input voltages
• Thermal Shutdown Protection: Safeguards the device from overheating
• Short Circuit Protection: Prevents damage due to short circuits

Advantages and Disadvantages

Advantages

• Compact size
• Wide input voltage range
• Excellent line and load regulation

Disadvantages

• Limited output current capacity
• Sensitive to thermal conditions

Working Principles

The SMPZ3931B-E3/84A operates by comparing the output voltage to a reference voltage and adjusting the pass element to maintain a stable output. It utilizes a feedback loop to regulate the output voltage, ensuring consistent performance across varying input and load conditions.

Detailed Application Field Plans

This voltage regulator is widely used in various electronic devices such as mobile phones, portable media players, digital cameras, and other battery-powered applications. Its ability to maintain a stable output voltage makes it suitable for powering sensitive integrated circuits and microcontrollers.

Detailed and Complete Alternative Models

• LM1117: Similar voltage regulator with higher output current capacity
• XC6206: Low dropout voltage regulator with smaller package size
• LT1763: Precision voltage regulator with adjustable output voltage

In conclusion, the SMPZ3931B-E3/84A plays a critical role in maintaining stable voltage levels within electronic devices, offering high precision and reliability. Its compact size and wide input voltage range make it suitable for a diverse range of applications, despite its limitations in output current capacity and sensitivity to thermal conditions. With its detailed specifications, pin configuration, functional features, and application field plans, this entry provides a comprehensive understanding of the SMPZ3931B-E3/84A and its place within the realm of electronic components.