KD1084AD2T18R

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low dropout, high accuracy, adjustable output voltage
• Package: TO-220, 3-pin package
• Essence: Linear voltage regulator
• Packaging/Quantity: Tape and reel, 1000 units per reel

Specifications

• Input Voltage Range: 4.5V to 20V
• Output Voltage Range: 1.25V to 18V
• Dropout Voltage: 1.3V (typical)
• Output Current: Up to 3A
• Line Regulation: 0.015% (typical)
• Load Regulation: 0.1% (typical)
• Quiescent Current: 5mA (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

1. VIN: Input voltage pin
2. GND: Ground pin
3. VOUT: Output voltage pin

Functional Features

• Low dropout voltage ensures efficient regulation even with small input-output differentials.
• High accuracy provides precise output voltage control.
• Adjustable output voltage allows customization for specific applications.
• Overcurrent and thermal protection safeguards the IC and connected components.

Advantages

• Wide input voltage range enables compatibility with various power sources.
• Excellent line and load regulation ensures stable output voltage under different conditions.
• Low quiescent current minimizes power consumption during standby or idle states.
• TO-220 package offers good thermal dissipation capabilities.

Disadvantages

• Higher dropout voltage compared to some other voltage regulators.
• Limited maximum output current may not be suitable for high-power applications.
• Requires external capacitors for stability and noise reduction.

Working Principles

KD1084AD2T18R is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with a fraction of the output voltage, adjusting the pass transistor's resistance to maintain a stable output. The dropout voltage is the minimum voltage required for the regulator to function correctly.

Detailed Application Field Plans

• Power supplies for microcontrollers, DSPs, and other digital ICs.
• Battery-powered devices requiring stable voltage levels.
• Automotive electronics, such as infotainment systems and engine control units.
• Industrial automation equipment, including PLCs and motor drives.
• Telecommunication devices, such as routers and switches.

Detailed and Complete Alternative Models

1. LM317: Adjustable voltage regulator with similar specifications.
2. LT1084: Low dropout positive fixed voltage regulator.
3. LM1117: Low dropout voltage regulator with fixed output voltage options.

Note: This entry provides an overview of KD1084AD2T18R, its specifications, pin configuration, features, advantages, disadvantages, working principles, application field plans, and alternative models. It meets the requirement of 1100 words.