SI3457DV

Product Overview

Category

The SI3457DV belongs to the category of integrated circuits (ICs).

Use

It is commonly used as a voltage regulator in electronic devices.

Characteristics

• Voltage Regulation: The SI3457DV provides stable voltage output for electronic components.
• Efficiency: It offers high efficiency in converting input voltage to the desired output.
• Compact Design: The IC is designed to be compact, making it suitable for various applications.
• Temperature Stability: It maintains stability even under varying temperature conditions.

Package

The SI3457DV is typically available in a small outline integrated circuit (SOIC) package.

Essence

The essence of the SI3457DV lies in its ability to regulate and stabilize voltage for electronic devices, ensuring their proper functioning.

Packaging/Quantity

It is usually packaged in reels containing a specific quantity, such as 2500 units per reel.

Specifications

• Input Voltage Range: 4.5V to 28V
• Output Voltage Range: 0.8V to 24V
• Output Current: Up to 3A
• Operating Temperature Range: -40°C to 125°C
• Package Type: SOIC-8

Detailed Pin Configuration

The SI3457DV has the following pin configuration: 1. VIN (Input Voltage) 2. GND (Ground) 3. FB (Feedback) 4. EN (Enable) 5. NC (No Connection) 6. SW (Switch) 7. NC (No Connection) 8. VOUT (Output Voltage)

Functional Features

• Voltage Regulation: The IC regulates the output voltage based on the feedback received from the FB pin.
• Enable Function: The EN pin allows for the enable/disable control of the voltage regulator.
• Overcurrent Protection: It incorporates overcurrent protection to safeguard connected devices.

Advantages and Disadvantages

Advantages

• High efficiency in voltage regulation
• Compact design for space-constrained applications
• Wide input and output voltage range

Disadvantages

• Limited maximum output current compared to some alternative models
• May require additional heat dissipation for high-power applications

Working Principles

The SI3457DV operates by comparing the feedback voltage with a reference voltage to adjust the duty cycle of the internal switch, thereby regulating the output voltage. When enabled, it continuously monitors the output current to provide overcurrent protection.

Detailed Application Field Plans

The SI3457DV finds extensive use in various applications, including: - Power supplies for consumer electronics - Automotive electronics - Industrial automation systems - LED lighting applications

Detailed and Complete Alternative Models

Some alternative models to the SI3457DV include: - LM317: A popular linear voltage regulator with adjustable output - LT1083: A high-current positive voltage regulator - LM7805: A widely used fixed-output voltage regulator

In conclusion, the SI3457DV serves as a reliable voltage regulator with efficient performance and versatile applications across different industries.

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