MIC5253-2.8BC5

Product Overview

Category

MIC5253-2.8BC5 belongs to the category of voltage regulators.

Use

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

Characteristics

• Package: The MIC5253-2.8BC5 comes in a compact SOT-23 package.
• Essence: It is a low-dropout (LDO) linear voltage regulator.
• Packaging/Quantity: The product is typically sold in reels or tubes, with a quantity of 3000 units per reel.

Specifications

The following are the specifications of MIC5253-2.8BC5:

• Output Voltage: 2.8V
• Input Voltage Range: 2.5V to 16V
• Dropout Voltage: 200mV at 150mA
• Quiescent Current: 75µA
• Load Regulation: ±0.1%
• Line Regulation: ±0.05%
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The MIC5253-2.8BC5 has three pins:

1. VIN: Input voltage pin
2. GND: Ground pin
3. VOUT: Output voltage pin

Functional Features

The key functional features of MIC5253-2.8BC5 include:

• Low dropout voltage: The regulator maintains a stable output voltage even when the input voltage is close to the desired output voltage.
• Low quiescent current: It consumes minimal current when there is no load, making it suitable for battery-powered applications.
• Excellent line and load regulation: The regulator provides precise voltage regulation under varying load conditions.
• Thermal shutdown protection: It incorporates thermal shutdown circuitry to prevent damage due to excessive temperature.

Advantages and Disadvantages

Advantages

• Compact size and easy to integrate into various electronic circuits.
• Wide input voltage range allows for flexibility in different applications.
• Low dropout voltage ensures efficient power conversion.
• Excellent line and load regulation provides stable output voltage.

Disadvantages

• Limited output current capability compared to other types of regulators.
• Higher cost compared to non-linear voltage regulators.

Working Principles

MIC5253-2.8BC5 operates based on the principle of a low-dropout linear voltage regulator. It uses a pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. The regulator compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a stable output voltage.

Detailed Application Field Plans

MIC5253-2.8BC5 finds application in various electronic devices, including but not limited to:

1. Battery-powered portable devices: It can be used to regulate voltage in smartphones, tablets, and portable audio players.
2. Industrial control systems: The regulator is suitable for use in control systems that require stable and precise voltage regulation.
3. Automotive electronics: It can be employed in automotive applications such as infotainment systems and engine control units.

Detailed and Complete Alternative Models

Some alternative models to MIC5253-2.8BC5 include:

1. LM1117-2.8: A popular LDO voltage regulator with similar specifications.
2. LT1763-2.8: Another LDO regulator known for its low dropout voltage and high accuracy.
3. ADP3339-2.8: An LDO regulator offering low quiescent current and thermal shutdown protection.

These alternative models provide similar functionality and can be considered as substitutes depending on specific requirements.

In conclusion, MIC5253-2.8BC5 is a compact and efficient low-dropout linear voltage regulator. With its excellent line and load regulation, it finds application in various electronic devices, particularly those requiring stable voltage regulation. While it has limitations in terms of output current capability and cost, alternative models are available to suit different needs.