EL7554IRE

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: High efficiency, low dropout voltage, adjustable output voltage
• Package: TO-220
• Essence: The EL7554IRE is a voltage regulator IC designed to provide a stable and regulated output voltage for various electronic devices.
• Packaging/Quantity: Available in reels of 1000 units.

Specifications

• Input Voltage Range: 2.5V - 18V
• Output Voltage Range: 1.25V - 16V
• Maximum Output Current: 1.5A
• Dropout Voltage: 0.5V @ 1A
• Quiescent Current: 10mA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The EL7554IRE has the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. VOUT: Output voltage pin
4. ADJ: Adjustable pin for setting the output voltage

Functional Features

• High Efficiency: The EL7554IRE utilizes advanced circuitry to achieve high efficiency, minimizing power loss and maximizing battery life.
• Low Dropout Voltage: With a dropout voltage as low as 0.5V, the IC can maintain a stable output voltage even when the input voltage is close to the desired output voltage.
• Adjustable Output Voltage: The ADJ pin allows users to easily adjust the output voltage according to their specific requirements.

Advantages and Disadvantages

Advantages

• High efficiency design results in reduced power consumption.
• Low dropout voltage ensures stable output even with varying input voltages.
• Adjustable output voltage provides flexibility for different applications.
• TO-220 package allows for easy mounting and heat dissipation.

Disadvantages

• Limited maximum output current of 1.5A may not be suitable for high-power applications.
• Quiescent current of 10mA may contribute to power consumption in low-power devices.

Working Principles

The EL7554IRE operates based on a voltage regulation principle known as linear regulation. It compares the output voltage with a reference voltage and adjusts the internal circuitry to maintain a stable output voltage regardless of changes in the input voltage or load conditions. This is achieved by controlling the pass transistor, which regulates the flow of current from the input to the output.

Detailed Application Field Plans

The EL7554IRE can be used in various electronic devices that require a stable and regulated power supply. Some potential application fields include:

1. Consumer Electronics: Used in portable devices such as smartphones, tablets, and digital cameras to ensure a consistent power supply.
2. Automotive Electronics: Integrated into automotive systems to regulate voltage for components like infotainment systems, lighting, and sensors.
3. Industrial Automation: Employed in industrial control systems, robotics, and machinery to provide reliable power for critical components.
4. Telecommunications: Utilized in networking equipment, routers, and switches to maintain a steady voltage for uninterrupted communication.

Detailed and Complete Alternative Models

1. LM317: A popular adjustable voltage regulator IC with similar specifications and pin configuration.
2. LT1084: Offers higher maximum output current and lower dropout voltage compared to the EL7554IRE.
3. LM7805: Fixed output voltage regulator with a maximum output current of 1A.

These alternative models provide options for different requirements and can be considered as substitutes for the EL7554IRE depending on the specific application.

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