MIC2951-3.3BM

Product Overview

Category

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

Use

It is used to regulate and maintain a stable output voltage in various electronic circuits.

Characteristics

• Input Voltage Range: 4.75V to 16V
• Output Voltage: 3.3V
• Maximum Output Current: 150mA
• Low Dropout Voltage: 380mV at 150mA
• Low Quiescent Current: 120μA
• Thermal Shutdown Protection

Package

The MIC2951-3.3BM is available in a miniature SOT-223 package, making it suitable for space-constrained applications.

Essence

The essence of the MIC2951-3.3BM lies in its ability to provide a stable and reliable output voltage with low dropout and quiescent current.

Packaging/Quantity

It is typically supplied in reels or tubes, with quantities varying based on manufacturer specifications.

Specifications

• Input Voltage Range: 4.75V to 16V
• Output Voltage: 3.3V ±2%
• Maximum Output Current: 150mA
• Dropout Voltage: 380mV at 150mA
• Quiescent Current: 120μA
• Operating Temperature Range: -40°C to 125°C
• Thermal Shutdown: Yes

Detailed Pin Configuration

The MIC2951-3.3BM has a standard pin configuration with input, output, ground, and enable pins. Refer to the datasheet for specific details.

Functional Features

• Low dropout voltage
• Low quiescent current
• Thermal shutdown protection
• Short-circuit current limiting
• Reverse battery protection

Advantages

• Stable output voltage
• Wide input voltage range
• Small package size
• Thermal shutdown protection

Disadvantages

• Limited maximum output current
• Higher dropout voltage compared to some alternatives

Working Principles

The MIC2951-3.3BM utilizes a precision bandgap reference and error amplifier to regulate the output voltage. It compares the feedback voltage with the internal reference to adjust the pass transistor and maintain the desired output voltage.

Detailed Application Field Plans

The MIC2951-3.3BM is commonly used in battery-powered devices, sensor modules, portable electronics, and other applications requiring a stable 3.3V power supply. Its low dropout voltage and quiescent current make it suitable for energy-efficient designs.

Detailed and Complete Alternative Models

• LM1117-3.3
• LP2985-3.3
• MCP1703-3302E

These alternative models offer similar voltage regulation capabilities and can be considered based on specific application requirements.

In conclusion, the MIC2951-3.3BM is a versatile voltage regulator with a wide input voltage range, making it suitable for various low-power electronic applications. Its compact package and functional features contribute to its widespread use in modern electronic designs.

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