EL7222CSZ

Product Overview

• Category: Integrated Circuit
• Use: Voltage Regulator
• Characteristics: High efficiency, low dropout voltage, adjustable output voltage
• Package: TO-220
• Essence: Linear voltage regulator
• Packaging/Quantity: Tube packaging, 25 pieces per tube

Specifications

• Input Voltage Range: 4.5V to 40V
• Output Voltage Range: 1.25V to 37V
• Output Current: Up to 1.5A
• Dropout Voltage: 0.6V typical at 1A load
• Line Regulation: 0.02% typical
• Load Regulation: 0.04% typical
• Quiescent Current: 10mA typical
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The EL7222CSZ has a standard three-pin configuration:

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

Functional Features

• High Efficiency: The EL7222CSZ offers high efficiency, minimizing power dissipation and maximizing battery life.
• Low Dropout Voltage: With a low dropout voltage of 0.6V at 1A load, it can regulate the output voltage even when the input voltage is close to the desired output voltage.
• Adjustable Output Voltage: The output voltage can be adjusted using external resistors, providing flexibility in various applications.

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power consumption.
• Low dropout voltage ensures stable output voltage even with varying input voltage.
• Adjustable output voltage allows customization for specific requirements.

Disadvantages

• Limited output current of up to 1.5A.
• Requires external resistors for output voltage adjustment.

Working Principles

The EL7222CSZ is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage obtained from a voltage divider connected to the output pin. The pass transistor adjusts its resistance to maintain a constant output voltage, compensating for changes in input voltage and load conditions.

Detailed Application Field Plans

The EL7222CSZ is commonly used in various applications, including:

1. Power Supplies: It can be used as a voltage regulator in power supply circuits for electronic devices.
2. Automotive Electronics: The regulator is suitable for automotive applications, such as powering sensors, actuators, and control modules.
3. Battery-Powered Systems: It is ideal for battery-powered systems where efficient power management is crucial.
4. Industrial Control Systems: The EL7222CSZ finds application in industrial control systems, providing stable voltage regulation for sensors, motors, and other components.

Detailed and Complete Alternative Models

1. LM317: A popular adjustable linear voltage regulator with similar specifications.
2. LT1084: Another high-current adjustable linear voltage regulator option.
3. LM7805: Fixed output voltage regulator with a maximum output current of 1A.

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

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