MIC4575-3.3BU

Product Overview

Category

The MIC4575-3.3BU belongs to the category of voltage regulators.

Use

It is commonly used to regulate and stabilize voltage in electronic circuits.

Characteristics

• Input Voltage Range: 4.5V to 16V
• Output Voltage: 3.3V
• Maximum Output Current: 1.5A
• Dropout Voltage: 0.6V (typical)
• Low Quiescent Current: 120µA (typical)
• Package Type: TO-263-5L
• Operating Temperature Range: -40°C to +125°C

Packaging/Quantity

The MIC4575-3.3BU is typically packaged in a TO-263-5L package. It is available in various quantities depending on the supplier.

Specifications

• Input Voltage Range: 4.5V to 16V
• Output Voltage: 3.3V ±2%
• Maximum Output Current: 1.5A
• Dropout Voltage: 0.6V (typical), 1.2V (maximum)
• Line Regulation: 0.02%/V
• Load Regulation: 0.04%/A
• Quiescent Current: 120µA (typical), 200µA (maximum)
• Ripple Rejection: 70dB (typical)
• Thermal Shutdown Protection: Yes
• Short Circuit Protection: Yes

Pin Configuration

The MIC4575-3.3BU has the following pin configuration:

```

---

| | --| VIN GND |-- --| VOUT NC |-- --| EN PGND |-- |___________| ```

• VIN: Input Voltage
• GND: Ground
• VOUT: Output Voltage
• NC: No Connection
• EN: Enable Pin
• PGND: Power Ground

Functional Features

• Wide input voltage range allows for flexibility in various applications.
• Low dropout voltage ensures efficient regulation even with low input voltages.
• Excellent line and load regulation characteristics provide stable output voltage.
• Thermal shutdown protection prevents damage due to excessive temperature.
• Short circuit protection safeguards the regulator and connected components.

Advantages

• High efficiency and low quiescent current make it suitable for battery-powered devices.
• Compact TO-263-5L package enables easy integration into space-constrained designs.
• Wide operating temperature range allows for use in extreme environments.
• Good ripple rejection minimizes noise interference in sensitive applications.

Disadvantages

• The maximum output current of 1.5A may not be sufficient for high-power applications.
• The dropout voltage of 0.6V may limit its usability in low voltage scenarios.

Working Principles

The MIC4575-3.3BU is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It compares the reference voltage with the feedback voltage and adjusts the pass transistor accordingly to maintain a stable output voltage.

Detailed Application Field Plans

The MIC4575-3.3BU 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 - Communication equipment

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the MIC4575-3.3BU include: - LM1117-3.3 - LT1086-3.3 - TPS73633DBVR - ADP3339AKCZ-3.3-R7

These alternatives should be evaluated based on specific requirements and application needs.

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