MIC37301-3.3WR-TR

Product Overview

Category

MIC37301-3.3WR-TR belongs to the category of voltage regulators.

Use

This product is used to regulate and stabilize voltage levels in electronic circuits.

Characteristics

• Input Voltage Range: 4.5V to 36V
• Output Voltage: 3.3V
• Maximum Output Current: 1A
• Dropout Voltage: 300mV
• Operating Temperature Range: -40°C to +125°C
• Package Type: SOT-223
• Essence: Low dropout linear regulator

Packaging/Quantity

MIC37301-3.3WR-TR is available in a SOT-223 package. It is typically sold in reels containing a quantity of 2500 units.

Specifications

• Input Voltage Range: 4.5V to 36V
• Output Voltage: 3.3V ±2%
• Maximum Output Current: 1A
• Dropout Voltage: 300mV at 1A
• Line Regulation: ±0.02%/V
• Load Regulation: ±0.05%/A
• Quiescent Current: 75µA
• Ripple Rejection: 70dB
• Thermal Shutdown Protection: Yes
• Short Circuit Protection: Yes
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

MIC37301-3.3WR-TR has the following pin configuration:

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

Functional Features

• Low dropout voltage ensures efficient regulation even with small 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 from damage.

Advantages

• Wide input voltage range allows for versatile applications.
• Low dropout voltage minimizes power dissipation and improves efficiency.
• Compact SOT-223 package enables space-saving designs.
• Excellent line and load regulation ensure stable output voltage.
• Thermal shutdown and short circuit protection enhance reliability.

Disadvantages

• Maximum output current limited to 1A, which may not be sufficient for high-power applications.
• Dropout voltage of 300mV may result in higher power dissipation compared to other regulators.

Working Principles

MIC37301-3.3WR-TR is a low dropout linear regulator that operates by comparing the output voltage with a reference voltage. It adjusts the pass transistor to maintain a constant output voltage despite variations in input voltage and load conditions. The regulator utilizes feedback control to continuously monitor and adjust the output voltage, ensuring stability and accuracy.

Detailed Application Field Plans

MIC37301-3.3WR-TR finds applications in various electronic systems requiring regulated and stable 3.3V power supply. Some common application fields include:

1. Industrial automation
2. Automotive electronics
3. Telecommunications equipment
4. Consumer electronics
5. Power management systems

Detailed and Complete Alternative Models

1. LM1117-3.3: Low dropout voltage regulator with similar specifications.
2. LT1763-3.3: High-performance linear regulator suitable for demanding applications.
3. TPS7A3301: Ultra-low dropout voltage regulator with enhanced features.

These alternative models offer similar functionality and can be considered as substitutes for MIC37301-3.3WR-TR depending on specific requirements.

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