MIC4576-3.3BT

Product Overview

Category

The MIC4576-3.3BT 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 MIC4576-3.3BT provides a regulated output voltage of 3.3V.
• High Efficiency: This voltage regulator offers high efficiency, minimizing power dissipation.
• Low Dropout Voltage: It has a low dropout voltage, ensuring stable operation even with small input-output voltage differentials.
• Current Limiting: The device incorporates current limiting protection to prevent damage due to excessive current flow.
• Thermal Shutdown: It includes thermal shutdown protection to safeguard against overheating.

Package

The MIC4576-3.3BT is available in a TO-220 package, which is a widely used through-hole package for power devices.

Essence

The essence of the MIC4576-3.3BT is its ability to provide a stable and regulated output voltage of 3.3V, making it suitable for various electronic applications.

Packaging/Quantity

This product is typically sold in reels or tubes containing a specific quantity, such as 100 units per reel.

Specifications

• Input Voltage Range: 4.5V to 16V
• Output Voltage: 3.3V
• Output Current: Up to 3A
• Dropout Voltage: 0.6V (typical)
• Quiescent Current: 10mA (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The MIC4576-3.3BT has three pins:

1. VIN (Pin 1): Input voltage pin.
2. VOUT (Pin 2): Regulated output voltage pin.
3. GND (Pin 3): Ground pin.

Functional Features

• Voltage Regulation: The MIC4576-3.3BT maintains a constant output voltage of 3.3V, regardless of input voltage fluctuations.
• Current Limiting: It incorporates current limiting protection to prevent damage to the device and connected components in case of excessive current flow.
• Thermal Shutdown: The regulator includes thermal shutdown protection, which shuts down the device if the temperature exceeds a safe threshold, preventing overheating and potential damage.

Advantages and Disadvantages

Advantages

• High efficiency, reducing power dissipation.
• Low dropout voltage ensures stable operation even with small voltage differentials.
• Current limiting protection prevents damage due to excessive current flow.
• Thermal shutdown protection safeguards against overheating.

Disadvantages

• Limited output current capacity (up to 3A).
• Requires external components for proper operation (input/output capacitors, resistors).

Working Principles

The MIC4576-3.3BT is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a constant output voltage of 3.3V. The device operates by dissipating excess voltage as heat, resulting in a regulated output voltage.

Detailed Application Field Plans

The MIC4576-3.3BT finds applications in various electronic systems, including but not limited to: - Power supplies for microcontrollers and digital circuits. - Battery-powered devices requiring a stable 3.3V voltage source. - Industrial control systems. - Automotive electronics. - Communication equipment.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the MIC4576-3.3BT include: - LM1117-3.3: A popular 3.3V linear voltage regulator with a TO-220 package. - LT1763-3.3: A low dropout 3.3V voltage regulator with high accuracy and low quiescent current. - TPS7A3301: An ultra-low noise, high PSRR 3.3V voltage regulator suitable for sensitive applications.

These alternative models provide comparable voltage regulation capabilities and can be considered as substitutes for the MIC4576-3.3BT in various applications.

In conclusion, the MIC4576-3.3BT is a voltage regulator that offers stable and regulated output voltage of 3.3V. It provides high efficiency, low dropout voltage, and incorporates current limiting and thermal shutdown protection. This device finds applications in diverse electronic systems and has alternative models available in the market.