MIC4576-5.0BU

Product Overview

Category

MIC4576-5.0BU belongs to the category of voltage regulators.

Use

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

Characteristics

• Input Voltage Range: 4.75V to 16V
• Output Voltage: 5V
• Maximum Output Current: 3A
• Dropout Voltage: 1.2V at 3A
• Low Quiescent Current: 120µA
• Thermal Shutdown Protection
• Short Circuit Protection
• Adjustable Soft-Start
• Available in TO-263-5L package

Package and Quantity

MIC4576-5.0BU is available in a TO-263-5L package. It is typically sold in reels or tubes containing multiple units.

Specifications

• Input Voltage Range: 4.75V to 16V
• Output Voltage: 5V ±2%
• Maximum Output Current: 3A
• Dropout Voltage: 1.2V at 3A
• Quiescent Current: 120µA
• Line Regulation: 0.02%/V
• Load Regulation: 0.04%/A
• Ripple Rejection: 70dB
• Operating Temperature Range: -40°C to +125°C
• Package Type: TO-263-5L

Pin Configuration

MIC4576-5.0BU has the following pin configuration:

```

---

| | --| VIN GND |-- Pin 1 --| VOUT NC |-- Pin 2 --| EN FB |-- Pin 3 --| SS NC |-- Pin 4 --| PG NC |-- Pin 5 |___________| ```

Functional Features

1. Thermal Shutdown Protection: The MIC4576-5.0BU includes thermal shutdown protection to prevent damage due to excessive temperature.
2. Short Circuit Protection: This voltage regulator has built-in short circuit protection, ensuring the safety of the circuit and preventing damage.
3. Adjustable Soft-Start: The soft-start feature allows for a controlled startup, reducing inrush current and minimizing stress on the components.
4. Low Quiescent Current: With a low quiescent current of 120µA, the MIC4576-5.0BU minimizes power consumption when the load is light.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for flexibility in various applications.
• High output current capability of 3A makes it suitable for powering a wide range of electronic devices.
• Thermal shutdown and short circuit protection enhance the reliability and safety of the circuit.
• Adjustable soft-start feature reduces stress on components during startup.

Disadvantages

• Dropout voltage of 1.2V at 3A may limit its use in applications with low input voltages.
• Limited package options may not be suitable for all circuit designs.

Working Principles

MIC4576-5.0BU is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage to adjust the pass transistor's resistance and maintain a stable output voltage.

Application Field Plans

The MIC4576-5.0BU can be used in various applications, including but not limited to: - Power supplies for microcontrollers and other digital ICs - Battery-powered devices - Automotive electronics - Industrial control systems - Audio amplifiers

Alternative Models

Some alternative models to MIC4576-5.0BU include: - LM317: A popular adjustable linear voltage regulator with a wide input voltage range. - LM7805: A fixed 5V linear voltage regulator with a maximum output current of 1A. - LT1086: A low dropout (LDO) linear voltage regulator with adjustable output voltage and high output current capability.

These alternative models offer similar functionality and can be considered based on specific application requirements.

Word count: 511 words