MIC2545A-2BN

Product Overview

Category

The MIC2545A-2BN belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This IC is commonly used in various electronic devices to regulate and control power supply, ensuring efficient and reliable operation.

Characteristics

• The MIC2545A-2BN is a low-dropout voltage regulator with a fixed output voltage.
• It offers high accuracy and stability in voltage regulation.
• This IC has a wide input voltage range, making it suitable for diverse applications.
• It provides excellent line and load regulation, ensuring consistent performance under varying conditions.

Package

The MIC2545A-2BN is available in a compact and industry-standard 8-pin DIP (Dual Inline Package) format. This package ensures easy integration into circuit boards and facilitates mass production.

Essence

The essence of the MIC2545A-2BN lies in its ability to efficiently regulate and stabilize voltage, thereby enhancing the overall performance and reliability of electronic devices.

Packaging/Quantity

The MIC2545A-2BN is typically packaged in reels or tubes, containing a specified quantity of ICs per package. The exact packaging and quantity may vary depending on the manufacturer's specifications.

Specifications

• Input Voltage Range: 4.5V to 40V
• Output Voltage: Fixed at 3.3V
• Dropout Voltage: 0.5V (maximum)
• Output Current: Up to 500mA
• Quiescent Current: 120µA (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The MIC2545A-2BN features the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground reference pin
3. VOUT: Output voltage pin
4. BYPASS: Bypass capacitor connection pin
5. ADJ: Output voltage adjustment pin (optional)
6. NC: No connection pin
7. NC: No connection pin
8. EN: Enable pin for controlling the regulator's operation

Functional Features

• Low Dropout Voltage: The MIC2545A-2BN exhibits a low dropout voltage, ensuring efficient power conversion even when the input voltage is close to the output voltage.
• Current Limit Protection: This IC incorporates current limit protection, safeguarding the device and the connected circuitry from excessive current flow.
• Thermal Shutdown: In case of excessive temperature rise, the MIC2545A-2BN features thermal shutdown functionality, preventing damage due to overheating.
• Short-Circuit Protection: The IC includes short-circuit protection, which safeguards against potential damage caused by short circuits in the output load.

Advantages and Disadvantages

Advantages

• High accuracy and stability in voltage regulation
• Wide input voltage range for versatile applications
• Excellent line and load regulation for consistent performance
• Compact and industry-standard package for easy integration

Disadvantages

• Fixed output voltage may limit flexibility in certain applications requiring variable output voltages
• Limited output current capacity compared to higher-power regulators

Working Principles

The MIC2545A-2BN operates as a linear voltage regulator. It utilizes a pass transistor to regulate the output voltage based on the difference between the input and desired output voltage. By adjusting the resistance between the ADJ pin and ground, the output voltage can be fine-tuned if required.

Detailed Application Field Plans

The MIC2545A-2BN finds extensive application in various electronic devices, including but not limited to: - Battery-powered devices - Automotive electronics - Industrial control systems - Telecommunications equipment - Consumer electronics

Detailed and Complete Alternative Models

• MIC2544A-2BN: Similar to the MIC2545A-2BN, but with a fixed output voltage of 5V.
• MIC2546A-2BN: Similar to the MIC2545A-2BN, but with a fixed output voltage of 2.5V.
• MIC2547A-2BN: Similar to the MIC2545A-2BN, but with a fixed output voltage of 1.8V.

These alternative models provide similar functionality and characteristics, but with different fixed output voltages to suit specific application requirements.

In conclusion, the MIC2545A-2BN is a versatile and reliable voltage regulator IC that offers high accuracy, stability, and efficiency in power management applications. Its compact package, wide input voltage range, and various protection features make it an ideal choice for diverse electronic devices.