MIC2951-3.3BMM-TR

Product Overview

Category

The MIC2951-3.3BMM-TR belongs to the category of voltage regulators.

Use

This product is primarily used for regulating voltage in electronic circuits.

Characteristics

• Input Voltage Range: 4V to 26V
• Output Voltage: 3.3V
• Maximum Output Current: 500mA
• Low Dropout Voltage: 300mV at 500mA
• Low Quiescent Current: 120µA
• Thermal Shutdown Protection
• Short Circuit Current Limiting
• Overcurrent and Overtemperature Protection

Package

The MIC2951-3.3BMM-TR comes in a miniature SOT-23 package, which is compact and suitable for space-constrained applications.

Essence

The essence of this product lies in its ability to provide stable and regulated voltage output, ensuring reliable operation of electronic devices.

Packaging/Quantity

The MIC2951-3.3BMM-TR is typically packaged in reels containing 3000 units per reel.

Specifications

• Input Voltage Range: 4V to 26V
• Output Voltage: 3.3V
• Output Current: Up to 500mA
• Dropout Voltage: 300mV at 500mA
• Quiescent Current: 120µA
• Operating Temperature Range: -40°C to +125°C
• Package Type: SOT-23

Detailed Pin Configuration

The MIC2951-3.3BMM-TR has the following pin configuration:

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

Functional Features

• Voltage Regulation: The MIC2951-3.3BMM-TR ensures a stable output voltage of 3.3V, regardless of input voltage fluctuations.
• Low Dropout Voltage: With a dropout voltage as low as 300mV at 500mA, this regulator minimizes power dissipation and maximizes efficiency.
• Thermal Shutdown Protection: The device incorporates thermal shutdown protection to prevent damage due to excessive temperature.
• Short Circuit Current Limiting: It features short circuit current limiting to protect the circuit from excessive current flow during a fault condition.
• Overcurrent and Overtemperature Protection: The MIC2951-3.3BMM-TR includes built-in protection against overcurrent and overtemperature situations, enhancing the reliability of the system.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for versatile applications.
• Low dropout voltage ensures efficient power conversion.
• Compact SOT-23 package is suitable for space-constrained designs.
• Built-in protection features enhance system reliability.

Disadvantages

• Maximum output current limited to 500mA, which may not be sufficient for high-power applications.
• Limited output voltage options restrict flexibility in certain designs.

Working Principles

The MIC2951-3.3BMM-TR operates based on the principle of linear voltage regulation. It utilizes a pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. By comparing the output voltage with a reference voltage, the regulator adjusts the pass transistor to maintain a stable output voltage of 3.3V.

Detailed Application Field Plans

The MIC2951-3.3BMM-TR finds application in various electronic systems that require a stable and regulated 3.3V power supply. Some potential application fields include:

1. Microcontrollers and microprocessors
2. Embedded systems
3. Battery-powered devices
4. Communication equipment
5. Industrial control systems
6. Automotive electronics
7. Consumer electronics

Detailed and Complete Alternative Models

1. LM1117-3.3: A popular alternative with similar specifications and package options.
2. LT1763-3.3: Offers lower dropout voltage and higher output current capability.
3. TPS73633: Provides a wide input voltage range and adjustable output voltage.

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

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