MIC4575-3.3WU-TR

Product Overview

Category

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

Use

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

Characteristics

• Voltage regulation: The MIC4575-3.3WU-TR provides a stable output voltage of 3.3V.
• High efficiency: This voltage regulator offers high efficiency, minimizing power loss during operation.
• Low dropout voltage: It has a low dropout voltage, allowing it to operate even when the input voltage is close to the desired output voltage.
• Thermal shutdown protection: The MIC4575-3.3WU-TR includes thermal shutdown protection to prevent overheating.

Package

The MIC4575-3.3WU-TR comes in a small outline package (SOP) for easy integration into circuit boards.

Essence

The essence of this product lies in its ability to regulate and maintain a stable output voltage, ensuring reliable performance of electronic devices.

Packaging/Quantity

The MIC4575-3.3WU-TR is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input voltage range: 4.5V to 16V
• Output voltage: 3.3V
• Output current: Up to 1.5A
• Dropout voltage: 300mV at 1A
• Line regulation: ±0.2%
• Load regulation: ±0.4%
• Quiescent current: 120µA
• Operating temperature range: -40°C to +125°C

Detailed Pin Configuration

The MIC4575-3.3WU-TR has the following pin configuration:

1. VIN (Input voltage)
2. GND (Ground)
3. VOUT (Output voltage)

Functional Features

• Voltage regulation: The MIC4575-3.3WU-TR maintains a stable output voltage of 3.3V, regardless of input voltage fluctuations.
• Current limiting: It includes current limiting protection to prevent excessive current flow and protect connected devices.
• Thermal shutdown: The device shuts down if the temperature exceeds a certain threshold, preventing damage due to overheating.
• Short-circuit protection: The MIC4575-3.3WU-TR is equipped with short-circuit protection to safeguard against potential short circuits.

Advantages and Disadvantages

Advantages

• High efficiency ensures minimal power loss.
• Low dropout voltage allows operation with small voltage differentials.
• Thermal shutdown protection prevents overheating.
• Compact package for easy integration into circuit boards.

Disadvantages

• Limited output current capacity (up to 1.5A).
• Input voltage range may not be suitable for all applications.

Working Principles

The MIC4575-3.3WU-TR operates based on the principle of linear voltage regulation. It uses a feedback mechanism to compare the output voltage with a reference voltage and adjusts the internal circuitry to maintain a constant output voltage of 3.3V. This is achieved by controlling the pass transistor's resistance, which regulates the amount of voltage dropped across it.

Detailed Application Field Plans

The MIC4575-3.3WU-TR finds applications in various electronic systems, including:

1. Power supplies: It can be used in power supply circuits to provide a stable voltage source for other components.
2. Microcontrollers: The voltage regulator ensures a reliable and stable power supply for microcontrollers, preventing voltage fluctuations that could affect their performance.
3. Audio amplifiers: By maintaining a constant voltage supply, this regulator helps ensure consistent audio output quality in amplifiers.
4. Battery-powered devices: The MIC4575-3.3WU-TR can be used in battery-powered devices to regulate the voltage and extend battery life.

Detailed and Complete Alternative Models

1. LM1117-3.3: A popular alternative with similar specifications and pin configuration.
2. LT1763-3.3: Offers lower dropout voltage and higher output current capacity compared to the MIC4575-3.3WU-TR.
3. TPS7A3301: Provides adjustable output voltage and higher input voltage range.

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

In conclusion, the MIC4575-3.3WU-TR is a voltage regulator that provides stable and efficient voltage regulation. With its compact package and various protection features, it finds applications in diverse electronic systems. While it has limitations in terms of output current capacity and input voltage range, there are alternative models available to suit different needs.