MIC4576-3.3BU TR

Product Overview

Category

The MIC4576-3.3BU TR belongs to the category of voltage regulators.

Use

This product is commonly used in electronic circuits to regulate and stabilize the output voltage.

Characteristics

• Voltage regulation: The MIC4576-3.3BU TR provides a fixed output voltage of 3.3V.
• High efficiency: It offers high efficiency conversion, minimizing power loss.
• Low dropout voltage: The regulator can operate with a low input-output voltage differential.
• Thermal shutdown protection: It includes built-in thermal shutdown protection to prevent overheating.

Package

The MIC4576-3.3BU TR is available in a compact TO-263 package.

Essence

The essence of this product lies in its ability to provide a stable and regulated output voltage for various electronic applications.

Packaging/Quantity

The MIC4576-3.3BU TR is typically packaged in reels or tubes, containing a specific quantity per package.

Specifications

• Input Voltage Range: 4.5V to 16V
• Output Voltage: 3.3V
• Output Current: Up to 3A
• Dropout Voltage: 0.6V (typical)
• Line Regulation: ±0.05% (typical)
• Load Regulation: ±0.1% (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The MIC4576-3.3BU TR has the following pin configuration:

1. VIN (Input Voltage)
2. GND (Ground)
3. VOUT (Output Voltage)

Functional Features

• Voltage Regulation: The MIC4576-3.3BU TR maintains a constant output voltage of 3.3V, regardless of changes in the input voltage or load conditions.
• Current Limiting: It incorporates current limiting circuitry to protect the regulator and the connected components from excessive current.
• Short Circuit Protection: The device is designed to withstand short circuits without damage, ensuring the safety of the circuit.
• Thermal Shutdown: In case of excessive temperature, the regulator shuts down to prevent overheating and potential damage.

Advantages and Disadvantages

Advantages

• High efficiency conversion minimizes power loss.
• Compact package size allows for space-saving designs.
• Wide input voltage range provides flexibility in various applications.
• Built-in thermal shutdown protection enhances reliability.

Disadvantages

• Fixed output voltage limits versatility in certain applications requiring adjustable voltages.
• Higher dropout voltage compared to some other regulators may not be suitable for low-power applications.

Working Principles

The MIC4576-3.3BU TR operates based on a linear voltage regulation principle. It utilizes a feedback mechanism to compare the output voltage with a reference voltage and adjusts the internal circuitry to maintain a constant output voltage of 3.3V. The regulator continuously monitors the input voltage, load conditions, and temperature to ensure stable and reliable operation.

Detailed Application Field Plans

The MIC4576-3.3BU TR finds applications in various electronic systems that require a regulated 3.3V power supply. Some common application fields include:

1. Microcontrollers and microprocessors
2. Digital logic circuits
3. Communication systems
4. Industrial automation
5. Automotive electronics
6. Power management modules

Detailed and Complete Alternative Models

1. LM1117-3.3: A popular alternative with similar specifications and pin configuration.
2. LT1085CT-3.3: Offers adjustable output voltage with higher current capability.
3. TPS7A3301: Low-dropout voltage regulator with adjustable output voltage.

These alternative models provide options for different requirements and design considerations, allowing flexibility in choosing the most suitable voltage regulator for specific applications.

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