SPX385AS-L-1-2/TR

Introduction

The SPX385AS-L-1-2/TR is a voltage regulator belonging to the category of integrated circuits. It is commonly used in electronic devices to regulate and stabilize voltage, ensuring consistent power supply to sensitive components. This entry provides an overview of the product's basic information, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, detailed application field plans, and alternative models.

Basic Information Overview

• Category: Integrated Circuits
• Use: Voltage Regulation
• Characteristics: Stabilizes and regulates voltage, protects sensitive components
• Package: SOT-23-3
• Essence: Ensures consistent power supply
• Packaging/Quantity: Tape & Reel (3000 units per reel)

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage: 1.2V
• Output Current: 150mA
• Dropout Voltage: 340mV
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

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

Functional Features

• Voltage Regulation: Maintains stable output voltage despite fluctuations in input voltage.
• Overcurrent Protection: Safeguards against excessive current flow, protecting connected devices.
• Thermal Shutdown: Prevents overheating by shutting down the regulator if the temperature exceeds safe limits.

Advantages and Disadvantages

Advantages

• Compact size
• Wide input voltage range
• Overcurrent protection
• Thermal shutdown feature

Disadvantages

• Limited output current capacity
• Higher dropout voltage compared to some alternatives

Working Principles

The SPX385AS-L-1-2/TR operates by comparing the output voltage to a reference voltage and adjusting the pass element to maintain a constant output voltage. When the input voltage fluctuates, the regulator responds by modulating the pass element to ensure a steady output voltage.

Detailed Application Field Plans

The SPX385AS-L-1-2/TR is widely used in portable electronic devices such as smartphones, tablets, and portable media players. Its ability to provide stable voltage makes it suitable for powering sensitive components like microprocessors, memory chips, and display panels.

Detailed and Complete Alternative Models

• LM317: Offers higher output current capacity but has a larger package size.
• LT1086: Provides lower dropout voltage but may have a narrower input voltage range.

In conclusion, the SPX385AS-L-1-2/TR is a versatile voltage regulator with a wide range of applications in the electronics industry. Its compact size, overcurrent protection, and thermal shutdown feature make it a popular choice for designers seeking reliable voltage regulation in space-constrained environments.

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