MIC4685-5.0BR TR

Product Overview

Category

The MIC4685-5.0BR TR belongs to the category of voltage regulators.

Use

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

Characteristics

• Input Voltage Range: 4.5V to 16V
• Output Voltage: 5.0V
• Maximum Output Current: 500mA
• Dropout Voltage: 300mV at 500mA
• Low Quiescent Current: 120µA
• Low Shutdown Current: 1µA
• Thermal Shutdown Protection
• Short Circuit Current Limiting
• Reverse Battery Protection

Package

The MIC4685-5.0BR TR comes in a small outline SOT-23 package.

Essence

The essence of this product lies in its ability to provide a stable and regulated output voltage, even when the input voltage fluctuates.

Packaging/Quantity

The MIC4685-5.0BR TR is typically packaged in reels containing 3000 units.

Specifications

• Input Voltage Range: 4.5V to 16V
• Output Voltage: 5.0V ±2%
• Maximum Output Current: 500mA
• Dropout Voltage: 300mV at 500mA
• Quiescent Current: 120µA (typical)
• Shutdown Current: 1µA (typical)
• Operating Temperature Range: -40°C to +125°C
• Package Type: SOT-23

Detailed Pin Configuration

The MIC4685-5.0BR TR has three pins:

1. VIN (Pin 1): Input voltage pin.
2. GND (Pin 2): Ground reference pin.
3. VOUT (Pin 3): Regulated output voltage pin.

Functional Features

• Voltage Regulation: The MIC4685-5.0BR TR ensures a stable output voltage of 5.0V, regardless of input voltage fluctuations.
• Thermal Shutdown Protection: In case of excessive temperature, the device shuts down to prevent damage.
• Short Circuit Current Limiting: Protects the circuit from damage in case of a short circuit.
• Reverse Battery Protection: Safeguards the device against reverse polarity connection.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for flexibility in various applications.
• Low quiescent current minimizes power consumption.
• Thermal shutdown protection prevents overheating.
• Reverse battery protection enhances reliability.

Disadvantages

• Maximum output current limited to 500mA, which may not be sufficient for high-power applications.
• Dropout voltage of 300mV may result in some power loss.

Working Principles

The MIC4685-5.0BR TR is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a constant output voltage of 5.0V. The device also incorporates various protection features such as thermal shutdown and short circuit current limiting to ensure safe operation.

Detailed Application Field Plans

The MIC4685-5.0BR TR finds applications in various electronic systems where a stable 5.0V power supply is required. Some common application fields include:

1. Consumer Electronics: Used in portable devices, such as smartphones, tablets, and digital cameras, to provide regulated power to the internal circuitry.
2. Industrial Control Systems: Employed in control units, sensors, and actuators to ensure reliable and consistent power supply.
3. Automotive Electronics: Integrated into automotive systems for powering microcontrollers, sensors, and other electronic components.
4. Communication Systems: Utilized in networking equipment, routers, and modems to maintain a stable voltage for optimal performance.

Detailed and Complete Alternative Models

1. LM7805: A widely used linear voltage regulator with similar specifications and pin configuration.
2. LT1763: A low dropout (LDO) voltage regulator offering higher output current capability.
3. TPS7A4700: An ultra-low noise voltage regulator suitable for sensitive audio and RF applications.

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

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