MIC2920A-4.8BT

Product Overview

Category

The MIC2920A-4.8BT belongs to the category of voltage regulators.

Use

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

Characteristics

• Voltage regulation: The MIC2920A-4.8BT provides a regulated output voltage.
• Low dropout voltage: It operates with a low dropout voltage, ensuring efficient power conversion.
• High accuracy: This voltage regulator offers high accuracy in maintaining the desired output voltage.
• Thermal shutdown protection: It includes thermal shutdown protection to prevent damage due to excessive heat.
• Current limiting: The MIC2920A-4.8BT incorporates current limiting to protect against overcurrent conditions.

Package

The MIC2920A-4.8BT is available in a TO-220 package.

Essence

The essence of the MIC2920A-4.8BT lies in its ability to regulate voltage efficiently and accurately, providing stable power supply to electronic circuits.

Packaging/Quantity

This product is typically packaged in reels or tubes, with quantities varying based on customer requirements.

Specifications

• Input Voltage Range: 2.5V to 26V
• Output Voltage: 4.8V
• Dropout Voltage: 350mV (typical)
• Output Current: Up to 1A
• Line Regulation: 0.04% (typical)
• Load Regulation: 0.1% (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The MIC2920A-4.8BT 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 MIC2920A-4.8BT maintains a constant output voltage of 4.8V, regardless of input voltage fluctuations.
• Low Dropout Voltage: It operates with a low dropout voltage, minimizing power dissipation and maximizing efficiency.
• Thermal Shutdown Protection: The regulator includes thermal shutdown protection, which disables the device when the temperature exceeds a safe limit.
• Current Limiting: The MIC2920A-4.8BT incorporates current limiting to protect against excessive current flow, preventing damage to the circuit.

Advantages and Disadvantages

Advantages

• High accuracy in voltage regulation.
• Low dropout voltage ensures efficient power conversion.
• Thermal shutdown protection prevents overheating.
• Current limiting protects against overcurrent conditions.

Disadvantages

• Limited output current capacity (up to 1A).
• Requires external components for proper operation.

Working Principles

The MIC2920A-4.8BT 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 stable output voltage of 4.8V. The dropout voltage is minimized to ensure efficient power conversion.

Detailed Application Field Plans

The MIC2920A-4.8BT finds applications in various electronic systems where a regulated 4.8V power supply is required. Some common application fields include:

1. Battery-powered devices: It can be used to regulate the voltage in portable electronic devices such as smartphones, tablets, and digital cameras.
2. Automotive electronics: The regulator can be employed in automotive systems to provide a stable power source for microcontrollers, sensors, and other components.
3. Industrial control systems: It is suitable for regulating voltage in industrial control systems, ensuring reliable operation of PLCs, motor drives, and other equipment.
4. Communication systems: The MIC2920A-4.8BT can be utilized in communication systems to regulate voltage for RF modules, microcontrollers, and other communication components.

Detailed and Complete Alternative Models

1. LM2940-4.8: A similar voltage regulator with a fixed 4.8V output voltage.
2. LT1085CT-4.8: A high-current linear voltage regulator offering a fixed 4.8V output voltage.
3. TPS7A4901DGNR: An adjustable voltage regulator capable of providing a regulated output voltage of 4.8V.

These alternative models offer similar functionality and can be considered as substitutes for the MIC2920A-4.8BT based on specific application requirements.

In conclusion, the MIC2920A-4.8BT is a voltage regulator that provides efficient and accurate voltage regulation. With its low dropout voltage, thermal shutdown protection, and current limiting features, it offers reliable power supply in various electronic systems. Its applications range from battery-powered devices to automotive and industrial control systems. Alternative models such as LM2940-4.8, LT1085CT-4.8, and