MIC2920A-5.0WS-TR

Overview

Product Category

The MIC2920A-5.0WS-TR belongs to the category of voltage regulators.

Use

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

Characteristics

• Voltage regulation: The MIC2920A-5.0WS-TR provides a fixed output voltage of 5.0V.
• 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 built-in thermal shutdown protection to prevent overheating.
• Current limiting: The MIC2920A-5.0WS-TR incorporates current limiting to protect against excessive current flow.

Package and Quantity

The MIC2920A-5.0WS-TR is available in a small surface-mount SOT-223 package. It is typically sold in reels or tubes containing multiple units.

Specifications

• Input Voltage Range: 6.0V to 26.0V
• Output Voltage: 5.0V
• Dropout Voltage: 350mV (typical)
• Output Current: 1.0A
• Line Regulation: 0.04% (typical)
• Load Regulation: 0.2% (typical)
• Quiescent Current: 120µA (typical)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The MIC2920A-5.0WS-TR has three pins:

1. Input (VIN): This pin is connected to the input voltage source.
2. Ground (GND): This pin is connected to the ground reference.
3. Output (VOUT): This pin provides the regulated output voltage.

Functional Features

• Voltage Regulation: The MIC2920A-5.0WS-TR maintains a constant output voltage of 5.0V, regardless of input voltage fluctuations.
• Low Dropout Voltage: It operates with a low dropout voltage, ensuring efficient power conversion even when the input voltage is close to the desired output voltage.
• Thermal Shutdown Protection: The regulator includes thermal shutdown protection, which disables the device if the temperature exceeds a safe threshold.
• Current Limiting: The MIC2920A-5.0WS-TR incorporates current limiting to protect the circuit from excessive current flow, preventing damage to the device and connected components.

Advantages and Disadvantages

Advantages

• High accuracy in maintaining the desired output voltage.
• Low dropout voltage ensures efficient power conversion.
• Thermal shutdown protection prevents overheating.
• Current limiting protects against excessive current flow.

Disadvantages

• Limited output current capacity (1.0A).
• Requires an input voltage within the specified range (6.0V to 26.0V).

Working Principles

The MIC2920A-5.0WS-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 stable output voltage of 5.0V. The dropout voltage is minimized by using a low resistance pass element.

Application Field Plans

The MIC2920A-5.0WS-TR finds applications in various electronic devices and systems, including but not limited to: - Power supplies for microcontrollers and other digital ICs. - Battery-powered devices requiring a stable 5.0V supply. - Automotive electronics. - Industrial control systems. - Communication equipment.

Alternative Models

There are several alternative models available that offer similar functionality to the MIC2920A-5.0WS-TR. Some notable alternatives include: - LM2940 from Texas Instruments - LT1086 from Linear Technology - NCP1117 from ON Semiconductor

These alternative models provide comparable voltage regulation and features, but it is recommended to consult the respective datasheets for detailed specifications and suitability for specific applications.

In conclusion, the MIC2920A-5.0WS-TR is a voltage regulator that provides a fixed 5.0V output voltage with low dropout and high accuracy. It offers thermal shutdown protection and current limiting for enhanced reliability. With its compact package and versatile applications, it serves as a reliable solution for voltage regulation in various electronic systems.