STEF05LAJR

Basic Information Overview

• Category: Electronic Component
• Use: Voltage Regulator
• Characteristics: Low Dropout, Adjustable Output
• Package: TO-220
• Essence: Linear Regulator
• Packaging/Quantity: Tape and Reel, 1000 pieces per reel

Specifications

• Input Voltage Range: 2.5V to 18V
• Output Voltage Range: 1.25V to 16V
• Dropout Voltage: 0.45V at 500mA
• Maximum Output Current: 500mA
• Line Regulation: ±0.02%/V
• Load Regulation: ±0.04%/A
• Quiescent Current: 75µA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The STEF05LAJR has three pins: 1. Pin 1 (Input): Connects to the input voltage source. 2. Pin 2 (Ground): Connected to the ground reference. 3. Pin 3 (Output): Provides the regulated output voltage.

Functional Features

• Low dropout voltage ensures efficient regulation even with small input-output differentials.
• Adjustable output voltage allows for flexibility in various applications.
• Excellent line and load regulation characteristics ensure stable output voltage under varying conditions.
• Low quiescent current minimizes power consumption when the regulator is idle.
• Thermal shutdown protection prevents damage due to excessive temperature.

Advantages and Disadvantages

Advantages: - Low dropout voltage enables efficient regulation in low voltage applications. - Adjustable output voltage provides versatility for different circuit requirements. - Excellent line and load regulation ensures stable performance. - Thermal shutdown protection enhances reliability.

Disadvantages: - Limited maximum output current of 500mA may not be suitable for high-power applications. - The TO-220 package may require additional heat sinking for better thermal management.

Working Principles

The STEF05LAJR is a linear voltage regulator that operates by maintaining a constant output voltage despite variations in the input voltage and load conditions. It achieves this through the use of a pass transistor that adjusts its resistance to regulate the output voltage. The regulator compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain the desired output voltage.

Detailed Application Field Plans

The STEF05LAJR is commonly used in various electronic devices and circuits where a stable and adjustable voltage supply is required. Some typical application fields include: - Battery-powered devices - Portable electronics - Automotive systems - Industrial control systems - Communication equipment

Detailed and Complete Alternative Models

1. LM317: Adjustable Linear Voltage Regulator, TO-220 package.
2. LT1084: Adjustable Low Dropout Voltage Regulator, TO-220 package.
3. LDO50V: Low Dropout Voltage Regulator, TO-220 package.
4. MC7805: Fixed Output Voltage Regulator, TO-220 package.
5. NCP1117: Adjustable Linear Voltage Regulator, TO-220 package.

These alternative models offer similar functionality and characteristics to the STEF05LAJR and can be considered as alternatives based on specific requirements and availability.

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