PDI-V490 Product Overview

Introduction

The PDI-V490 is a versatile electronic component that belongs to the category of voltage regulators. This device is widely used in various electronic applications to regulate and stabilize voltage levels, ensuring consistent and reliable power supply to sensitive electronic circuits.

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-220, TO-263, D2PAK
• Essence: Ensuring stable and regulated power supply
• Packaging/Quantity: Typically available in reels or tubes containing multiple units

Specifications

The PDI-V490 voltage regulator is designed to operate within the following specifications: - Input Voltage Range: 4.5V to 28V - Output Voltage Range: 1.25V to 20V - Maximum Output Current: 1.5A - Dropout Voltage: 0.5V at 1A - Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The PDI-V490 features a standard pin configuration with input, output, and ground pins, typically denoted as Vin, Vout, and GND respectively. The pinout configuration ensures easy integration into various circuit designs.

Functional Features

• Voltage Regulation: The PDI-V490 provides precise and stable output voltage regulation, making it suitable for powering sensitive electronic components.
• Thermal Shutdown Protection: Incorporates built-in thermal shutdown protection to prevent damage due to excessive heat.
• Low Dropout Voltage: With a low dropout voltage, the regulator can maintain stable output even when the input voltage approaches the desired output level.

Advantages and Disadvantages

Advantages

• Precise voltage regulation
• Thermal shutdown protection
• Low dropout voltage
• Wide input voltage range

Disadvantages

• Limited maximum output current (1.5A)
• Requires external capacitors for stability in some configurations

Working Principles

The PDI-V490 utilizes a feedback control mechanism to compare the output voltage with a reference voltage, adjusting the internal circuitry to maintain a constant output voltage despite variations in the input voltage or load conditions. This principle ensures a stable and regulated output, crucial for the proper functioning of electronic devices.

Detailed Application Field Plans

The PDI-V490 finds extensive application in various electronic systems, including: - Power supplies for microcontrollers and digital ICs - Battery charging circuits - LED lighting systems - Portable electronic devices - Automotive electronics

Detailed and Complete Alternative Models

Several alternative models to the PDI-V490 include: - LM317: A popular adjustable linear voltage regulator - LM7805: Fixed 5V voltage regulator - LT1083: High current adjustable voltage regulator - LM2940: Low dropout voltage regulator

In conclusion, the PDI-V490 voltage regulator offers precise voltage regulation, thermal protection, and a compact form factor, making it an essential component in numerous electronic applications.

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