MIC2168BMM

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - High output current capability - Wide input voltage range - Adjustable output voltage - Thermal shutdown protection

Package: Miniature 8-pin MSOP (Micro Small Outline Package)

Essence: The MIC2168BMM is a voltage regulator IC that provides a stable output voltage from a varying input voltage source.

Packaging/Quantity: The MIC2168BMM is typically sold in reels of 2500 units.

Specifications

• Input Voltage Range: 2.7V to 16V
• Output Voltage Range: 1.25V to 15V
• Dropout Voltage: 300mV at 1A
• Output Current: Up to 1.5A
• Quiescent Current: 120µA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The MIC2168BMM has the following pin configuration:

```

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| | --| EN GND |-- Pin 1: Enable (EN) --| FB NC |-- Pin 2: Feedback (FB) --| VIN VOUT|-- Pin 3: Input Voltage (VIN) / Output Voltage (VOUT) --| NC NC |-- Pin 4: Not Connected (NC) --| NC NC |-- Pin 5: Not Connected (NC) --| NC NC |-- Pin 6: Not Connected (NC) --| NC NC |-- Pin 7: Not Connected (NC) --| NC NC |-- Pin 8: Not Connected (NC) |___________| ```

Functional Features

• Low Dropout Voltage: The MIC2168BMM has a low dropout voltage of only 300mV at 1A, allowing it to regulate the output voltage even when the input voltage is close to the desired output voltage.

• High Output Current Capability: With a maximum output current of 1.5A, the MIC2168BMM can provide sufficient power for various applications.

• Wide Input Voltage Range: The IC can accept input voltages ranging from 2.7V to 16V, making it suitable for a wide range of power supply sources.

• Adjustable Output Voltage: The output voltage of the MIC2168BMM can be adjusted using external resistors, providing flexibility in meeting specific voltage requirements.

• Thermal Shutdown Protection: The IC incorporates thermal shutdown protection, which prevents damage due to excessive temperature by shutting down the regulator temporarily.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient regulation - High output current capability for powering various devices - Wide input voltage range allows compatibility with different power sources - Adjustable output voltage provides flexibility - Thermal shutdown protection prevents overheating damage

Disadvantages: - Limited number of pins for additional functionality - Not suitable for high-power applications requiring higher output currents

Working Principles

The MIC2168BMM operates as a linear voltage regulator. It uses a pass transistor to control the output voltage based on the feedback received from the FB pin. The enable (EN) pin allows the regulator to be turned on or off. When enabled, the IC regulates the output voltage by adjusting the pass transistor's resistance to maintain a stable output voltage despite variations in the input voltage.

Detailed Application Field Plans

The MIC2168BMM is commonly used in various applications, including but not limited to: - Battery-powered devices - Portable electronic devices - Automotive electronics - Industrial equipment - Communication systems

Detailed and Complete Alternative Models

Some alternative models to the MIC2168BMM that offer similar functionality are: - LM317: A popular adjustable linear voltage regulator with a wide input voltage range. - LT1084: A high-current, low-dropout linear voltage regulator suitable for demanding applications. - TPS7A47: An ultra-low-noise linear voltage regulator designed for sensitive audio and RF applications.

These alternative models can be considered based on specific requirements and design constraints.