MIC4574-3.3YN

Product Overview

Category

MIC4574-3.3YN belongs to the category of voltage regulators.

Use

It is primarily used for regulating voltage in electronic circuits.

Characteristics

• Input Voltage Range: 4.5V to 16V
• Output Voltage: 3.3V
• Maximum Output Current: 1.5A
• Dropout Voltage: 120mV at 1A
• Package Type: TO-220
• Operating Temperature Range: -40°C to +125°C

Packaging/Quantity

MIC4574-3.3YN is typically packaged in reels or tubes, with a quantity of 1000 units per reel/tube.

Specifications

• Input Voltage Range: 4.5V to 16V
• Output Voltage: 3.3V ±2%
• Output Current: Up to 1.5A
• Dropout Voltage: 120mV at 1A
• Line Regulation: 0.02%/V
• Load Regulation: 0.04%/A
• Quiescent Current: 10mA
• Ripple Rejection: 70dB
• Thermal Shutdown Protection: Yes
• Short Circuit Protection: Yes

Pin Configuration

MIC4574-3.3YN has a standard TO-220 package with three pins:

1. Pin 1 (VIN): Input voltage pin.
2. Pin 2 (GND): Ground reference pin.
3. Pin 3 (VOUT): Output voltage pin.

Functional Features

• Low dropout voltage ensures efficient regulation even with low input-output differentials.
• Excellent line and load regulation characteristics provide stable output voltage under varying conditions.
• Thermal shutdown protection prevents damage due to excessive temperature.
• Short circuit protection safeguards the regulator and connected components.

Advantages

• Wide input voltage range allows for versatile applications.
• High output current capability enables driving power-hungry loads.
• Low dropout voltage minimizes power dissipation and improves efficiency.
• Compact TO-220 package facilitates easy integration into various circuit designs.

Disadvantages

• Limited output voltage options restrict its use in certain applications requiring different voltage levels.
• Quiescent current of 10mA may be relatively high for low-power applications.

Working Principles

MIC4574-3.3YN is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It compares the reference voltage with the feedback voltage and adjusts the pass transistor accordingly to maintain a stable output voltage.

Detailed Application Field Plans

MIC4574-3.3YN finds applications in various fields, including but not limited to: 1. Power supply modules for microcontrollers and digital circuits. 2. Battery-powered devices requiring regulated voltage. 3. Automotive electronics, such as infotainment systems and engine control units. 4. Industrial automation systems. 5. Communication equipment, such as routers and switches.

Detailed and Complete Alternative Models

Some alternative models to MIC4574-3.3YN include: 1. LM1117-3.3: Similar specifications and pin configuration, available in different package types. 2. LT1086-3.3: Higher output current capability, lower dropout voltage, and adjustable output voltage. 3. TPS7A3301: Ultra-low dropout voltage, higher output current, and adjustable output voltage.

These alternative models offer similar functionality and can be considered based on specific requirements and design constraints.

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