MIC37501-3.3BR

Product Overview

Category

MIC37501-3.3BR 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 28V
• Output Voltage: 3.3V
• Maximum Output Current: 1A
• Dropout Voltage: 300mV at 1A
• Low Quiescent Current: 120µA
• Thermal Shutdown Protection
• Short-Circuit Protection
• Reverse Polarity Protection

Package

MIC37501-3.3BR comes in a small outline SOT-23 package.

Essence

The essence of MIC37501-3.3BR is its ability to provide a stable output voltage of 3.3V with low dropout voltage and high efficiency.

Packaging/Quantity

This product is typically packaged in reels, containing 3000 units per reel.

Specifications

• Input Voltage Range: 4.5V to 28V
• Output Voltage: 3.3V ±2%
• Maximum Output Current: 1A
• Dropout Voltage: 300mV at 1A
• Quiescent Current: 120µA
• Operating Temperature Range: -40°C to +125°C
• Package Type: SOT-23

Detailed Pin Configuration

MIC37501-3.3BR has three pins:

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

Functional Features

• Voltage Regulation: MIC37501-3.3BR provides a regulated output voltage of 3.3V, ensuring stability in electronic circuits.
• Low Dropout Voltage: With a dropout voltage of only 300mV at 1A, this regulator minimizes power loss and improves efficiency.
• Low Quiescent Current: The quiescent current of 120µA ensures minimal power consumption in standby or idle mode.
• Thermal Shutdown Protection: The device incorporates thermal shutdown protection to prevent damage due to excessive heat.
• Short-Circuit Protection: MIC37501-3.3BR includes short-circuit protection, safeguarding the circuit from potential damage.
• Reverse Polarity Protection: It offers reverse polarity protection, preventing damage caused by incorrect connection.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for versatile applications.
• Low dropout voltage minimizes power dissipation.
• Low quiescent current reduces power consumption.
• Thermal shutdown and short-circuit protection enhance reliability.
• Reverse polarity protection prevents accidental damage.

Disadvantages

• Limited maximum output current of 1A may not be suitable for high-power applications.
• SOT-23 package may require additional heat sinking for certain scenarios.

Working Principles

MIC37501-3.3BR operates based on a linear voltage regulation principle. It uses an internal reference voltage and feedback mechanism to maintain a stable output voltage of 3.3V, regardless of variations in the input voltage. The device adjusts the pass transistor's resistance to regulate the output voltage within the specified tolerance.

Detailed Application Field Plans

MIC37501-3.3BR finds applications in various electronic systems, including but not limited to: - Battery-powered devices - Portable consumer electronics - Industrial control systems - Automotive electronics - Telecommunications equipment

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to MIC37501-3.3BR include: - LM1117-3.3: A popular 3.3V linear voltage regulator with a TO-220 package. - LT1763-3.3: A low dropout 3.3V regulator with adjustable output voltage and SOT-23 package. - TPS79633: A 3.3V, 1A ultra-low-dropout linear regulator in a SOT-223 package.

These alternatives provide options based on different package types, adjustable output voltage, or higher current capabilities, catering to diverse application requirements.

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