LE50ABD

Product Overview

• Category: Electronic Component
• Use: Voltage Regulator
• Characteristics: Low Dropout, High Current Capability
• Package: TO-220
• Essence: Linear Voltage Regulator
• Packaging/Quantity: Tape and Reel, 1000 units per reel

Specifications

• Input Voltage Range: 2.5V to 40V
• Output Voltage Range: 1.25V to 37V
• Dropout Voltage: 0.5V (typical)
• Output Current: Up to 1.5A
• Line Regulation: 0.04% (typical)
• Load Regulation: 0.1% (typical)
• Quiescent Current: 5mA (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LE50ABD voltage regulator has three pins:

1. Input (VIN): Connects to the input voltage source.
2. Ground (GND): Connected to the ground reference.
3. Output (VOUT): Provides the regulated output voltage.

Functional Features

• Low dropout voltage allows for efficient regulation even with small input-output differentials.
• High current capability enables it to handle demanding loads.
• Excellent line and load regulation ensures stable output voltage under varying conditions.
• Thermal shutdown and current limit protection mechanisms safeguard against overheating and excessive current.

Advantages and Disadvantages

Advantages

• Wide input voltage range makes it suitable for various applications.
• Compact TO-220 package facilitates easy integration into circuit designs.
• Low quiescent current minimizes power consumption.
• Robust protection features enhance reliability.

Disadvantages

• Limited maximum output current compared to some other voltage regulators.
• Dropout voltage may be higher than certain specialized regulators.

Working Principles

The LE50ABD is a linear voltage regulator that utilizes a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage and adjusting the pass transistor accordingly. This feedback loop ensures a stable output voltage despite changes in input voltage or load conditions.

Detailed Application Field Plans

The LE50ABD finds applications in various electronic systems where a stable and regulated voltage supply is required. Some common application fields include:

1. Power supplies for microcontrollers and digital circuits.
2. Battery-powered devices requiring efficient voltage regulation.
3. Automotive electronics, such as dashboard displays and infotainment systems.
4. Industrial control systems and automation equipment.
5. Communication devices, including routers and modems.

Detailed and Complete Alternative Models

1. LM317: Adjustable Linear Voltage Regulator with higher output current capability.
2. LT1084: Low Dropout Positive Fixed Voltage Regulator with lower dropout voltage.
3. LM1117: Low Dropout Voltage Regulator available in different fixed output voltages.

These alternative models offer similar functionality but may have varying specifications and package options.

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