MIC2920A-4.8BS TR

Overview

Product Category

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

Use

This product is commonly used in electronic circuits to regulate and stabilize voltage levels.

Characteristics

• Voltage regulation: The MIC2920A-4.8BS TR provides a fixed output voltage of 4.8V.
• Low dropout voltage: It operates efficiently even when the input voltage is close to the desired output voltage.
• Low quiescent current: The regulator consumes minimal current when in standby mode.
• Thermal shutdown protection: It includes built-in protection against excessive heat.

Package

The MIC2920A-4.8BS TR is available in a small surface-mount SOT-223 package.

Essence

The essence of this product lies in its ability to provide a stable and regulated output voltage, ensuring reliable operation of electronic devices.

Packaging/Quantity

The MIC2920A-4.8BS TR is typically packaged in reels or tubes, with quantities varying based on customer requirements.

Specifications

• Output voltage: 4.8V
• Input voltage range: 5.5V to 26V
• Dropout voltage: 350mV at 100mA load
• Quiescent current: 120µA (typical)
• Operating temperature range: -40°C to +125°C

Pin Configuration

The MIC2920A-4.8BS TR has three pins:

1. VIN (Input): Connects to the input voltage source.
2. VOUT (Output): Provides the regulated output voltage of 4.8V.
3. GND (Ground): Common reference point for the input and output voltages.

Functional Features

• Voltage Regulation: The MIC2920A-4.8BS TR maintains a constant output voltage of 4.8V, regardless of variations in the input voltage.
• Low Dropout: It can operate with a minimal voltage difference between the input and output, ensuring efficient power conversion.
• Thermal Shutdown Protection: The regulator includes a built-in mechanism to prevent overheating, protecting both the device and the connected circuitry.

Advantages and Disadvantages

Advantages

• Stable Output: Provides a reliable and consistent output voltage.
• Low Quiescent Current: Consumes minimal current when not actively regulating the voltage.
• Small Package Size: The SOT-223 package allows for compact designs.
• Wide Operating Temperature Range: Can withstand extreme temperatures.

Disadvantages

• Fixed Output Voltage: Limited flexibility in adjusting the output voltage.
• Dropout Voltage: Requires a minimum voltage difference between the input and output.

Working Principles

The MIC2920A-4.8BS TR is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It compares the output voltage to a reference voltage and adjusts the pass transistor accordingly to maintain a stable output. The regulator operates by dissipating excess voltage as heat, which is why it has a dropout voltage requirement.

Detailed Application Field Plans

The MIC2920A-4.8BS TR finds applications in various electronic systems, including:

1. Battery-powered devices: It ensures a stable voltage supply to sensitive components, preventing damage due to voltage fluctuations.
2. Automotive electronics: Used in automotive systems to regulate voltage for sensors, actuators, and other critical components.
3. Industrial control systems: Provides reliable voltage regulation for microcontrollers, sensors, and communication modules.
4. Consumer electronics: Used in audio/video equipment, portable devices, and power supplies to maintain stable voltage levels.

Detailed and Complete Alternative Models

1. LM2940CT-5.0/NOPB: A similar voltage regulator with a fixed output voltage of 5.0V.
2. LT1084CP-5: A high-current linear regulator with an adjustable output voltage.
3. TPS7A4700RGWT: An ultra-low dropout voltage regulator with a fixed output voltage of 4.7V.

These alternative models offer different features and specifications, providing options for various application requirements.

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