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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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What is the MIC2951-3.3BM?
- The MIC2951-3.3BM is a low-dropout voltage regulator designed to provide a regulated 3.3V output with a maximum dropout of 0.6V at 150mA load current.
What is the input voltage range for the MIC2951-3.3BM?
- The input voltage range for the MIC2951-3.3BM is typically 4.75V to 16V, making it suitable for various power supply applications.
What are the typical applications for the MIC2951-3.3BM?
- Typical applications include powering microcontrollers, sensors, and other digital ICs in automotive, industrial, and consumer electronic devices.
What is the maximum output current of the MIC2951-3.3BM?
- The MIC2951-3.3BM can provide a maximum output current of 150mA, making it suitable for low-power applications.
Does the MIC2951-3.3BM require an external capacitor for stability?
- Yes, the MIC2951-3.3BM requires an external 10μF tantalum or 22μF aluminum electrolytic capacitor for stability.
Is the MIC2951-3.3BM short-circuit protected?
- Yes, the MIC2951-3.3BM includes both thermal shutdown and current limit protection to safeguard against short circuits and overloads.
Can the MIC2951-3.3BM operate in a wide temperature range?
- Yes, the MIC2951-3.3BM is designed to operate in a wide temperature range from -40°C to 125°C, making it suitable for harsh environments.
What is the dropout voltage of the MIC2951-3.3BM at full load?
- The dropout voltage of the MIC2951-3.3BM is typically 0.6V at full load, ensuring efficient regulation even with low input voltages.
Is the MIC2951-3.3BM available in a surface-mount package?
- Yes, the MIC2951-3.3BM is available in a surface-mount TO-263 package, providing flexibility for compact PCB designs.
Can the MIC2951-3.3BM be used in battery-powered applications?
- Yes, the low dropout voltage and low quiescent current make the MIC2951-3.3BM suitable for battery-powered applications where efficiency is crucial.