MIC4682BM

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low Dropout, High Current, Adjustable Output
• Package: SOIC-8
• Essence: Power Management IC
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.5V to 16V
• Output Voltage Range: 1.25V to 15V
• Output Current: Up to 3A
• Dropout Voltage: 300mV at 3A
• Quiescent Current: 120µA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The MIC4682BM has a standard SOIC-8 pin configuration:

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| | --| Vout Vin|-- --| GND EN |-- --| FB NC |-- |___________| ```

Functional Features

• Low Dropout: The MIC4682BM can regulate the output voltage even when the input voltage is close to the desired output voltage.
• High Current: With an output current capability of up to 3A, it can handle a wide range of applications.
• Adjustable Output: The output voltage can be adjusted using external resistors connected to the feedback (FB) pin.
• Enable Pin: The enable (EN) pin allows for easy on/off control of the regulator.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient regulation. - High output current capability suits various power-hungry applications. - Adjustable output voltage provides flexibility. - Enable pin simplifies control.

Disadvantages: - Limited to a maximum input voltage of 16V. - Quiescent current of 120µA may not be suitable for ultra-low power applications.

Working Principles

The MIC4682BM is a linear voltage regulator that uses a PNP pass transistor to regulate the output voltage. It operates by comparing the feedback voltage (FB) with a reference voltage, and adjusts the pass transistor accordingly to maintain a stable output voltage. The enable (EN) pin allows the user to turn the regulator on or off as needed.

Detailed Application Field Plans

The MIC4682BM is commonly used in various applications, including but not limited to: 1. Power supplies for microcontrollers and digital circuits. 2. Battery-powered devices requiring efficient voltage regulation. 3. Automotive electronics, such as infotainment systems and lighting controls. 4. Industrial control systems and instrumentation. 5. Consumer electronics, such as audio amplifiers and portable devices.

Detailed and Complete Alternative Models

1. LM1117: Low dropout voltage regulator with adjustable output and up to 1.5A current capability.
2. LT1086: Adjustable linear regulator with low dropout voltage and high current capability.
3. TPS7A47: High-voltage, low-dropout linear regulator with adjustable output and up to 1A current capability.
4. ADP3339: Ultra-low dropout linear regulator with adjustable output and up to 1.5A current capability.

These alternative models offer similar features and can be considered based on specific application requirements.

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