LD1086PUR

Product Overview

• Category: Voltage Regulator
• Use: LD1086PUR is a low-dropout voltage regulator designed to provide a stable output voltage with minimal voltage drop.
• Characteristics: It offers high precision, low quiescent current, and excellent line and load regulation.
• Package: LD1086PUR comes in a TO-220 package, which provides good thermal conductivity and easy mounting on a heat sink.
• Essence: The essence of LD1086PUR lies in its ability to regulate voltage efficiently while minimizing power dissipation.
• Packaging/Quantity: Each LD1086PUR unit is packaged individually and is available in quantities of 100 or more.

Specifications

• Input Voltage Range: 4.5V to 20V
• Output Voltage Range: 1.2V to 15V
• Dropout Voltage: 1.3V (typical)
• Maximum Output Current: 1.5A
• Quiescent Current: 5mA (typical)
• Line Regulation: 0.04% (typical)
• Load Regulation: 0.1% (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

LD1086PUR has three pins:

1. Input Pin (VIN): This pin is used to connect the input voltage source.
2. Output Pin (VOUT): The regulated output voltage is obtained from this pin.
3. Ground Pin (GND): This pin is connected to the ground reference.

Functional Features

• Low dropout voltage ensures efficient regulation even when the input voltage is close to the desired output voltage.
• High precision output voltage allows for accurate voltage regulation in various applications.
• Excellent line and load regulation ensure stable performance under different operating conditions.
• Thermal overload and short-circuit protection mechanisms safeguard the regulator and connected components.

Advantages and Disadvantages

Advantages: - Low dropout voltage enables efficient regulation. - High precision output voltage ensures accurate regulation. - Excellent line and load regulation provide stable performance. - Thermal overload and short-circuit protection enhance reliability.

Disadvantages: - Limited maximum output current of 1.5A may not be suitable for high-power applications. - The TO-220 package may require additional space compared to smaller packages.

Working Principles

LD1086PUR operates based on the principle of a linear voltage regulator. It uses a pass transistor to regulate the output voltage by adjusting the resistance between the input and output pins. By maintaining a constant voltage drop across the pass transistor, LD1086PUR achieves stable output voltage regulation.

Detailed Application Field Plans

LD1086PUR finds applications in various fields, including but not limited to: - Power supplies for microcontrollers and other digital circuits - Battery-powered devices requiring stable voltage levels - Automotive electronics - Industrial control systems - Audio amplifiers

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to LD1086PUR are: - LM317: A versatile adjustable voltage regulator with similar characteristics. - LT1086: A low-dropout positive voltage regulator with higher maximum output current. - ADP3339: A low-dropout voltage regulator with ultra-low quiescent current.

These alternative models offer different specifications and features, allowing users to choose the most suitable option for their specific requirements.

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