MIC5219-2.8BM5-TR

Product Overview

Category

MIC5219-2.8BM5-TR belongs to the category of voltage regulators.

Use

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

Characteristics

• Voltage regulation: The MIC5219-2.8BM5-TR provides a stable output voltage of 2.8V.
• Low dropout: It has a low dropout voltage, ensuring efficient power conversion.
• Small package size: The product comes in a compact SOT-23-5 package, making it suitable for space-constrained applications.
• Low quiescent current: The regulator operates with a low quiescent current, minimizing power consumption.
• Thermal shutdown protection: It incorporates thermal shutdown protection to prevent overheating.

Package and Quantity

The MIC5219-2.8BM5-TR is available in a SOT-23-5 package. Each package contains one unit of the voltage regulator.

Specifications

• Output voltage: 2.8V
• Dropout voltage: 120mV (typical)
• Quiescent current: 75μA (typical)
• Maximum input voltage: 16V
• Operating temperature range: -40°C to +125°C

Pin Configuration

The MIC5219-2.8BM5-TR has five pins arranged as follows:

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Pin 1: Input voltage (VIN) Pin 2: Ground (GND) Pin 3: Enable (EN) Pin 4: Bypass capacitor (BP) Pin 5: Output voltage (VOUT)

Functional Features

• Voltage regulation: The MIC5219-2.8BM5-TR maintains a constant output voltage of 2.8V, regardless of input voltage fluctuations.
• Low dropout: It operates efficiently even when the input voltage is close to the output voltage, minimizing power dissipation.
• Enable pin: The regulator can be enabled or disabled using the EN pin, allowing for power-saving functionality.
• Bypass capacitor: The BP pin provides a connection point for an external bypass capacitor, further enhancing stability and noise reduction.

Advantages and Disadvantages

Advantages

• Stable output voltage
• Low dropout voltage
• Compact package size
• Low quiescent current
• Thermal shutdown protection

Disadvantages

• Limited output voltage options (fixed at 2.8V)
• Not suitable for high-power applications

Working Principles

The MIC5219-2.8BM5-TR utilizes a voltage reference, error amplifier, and pass transistor to regulate the output voltage. When the input voltage exceeds the desired output voltage, the pass transistor adjusts its resistance to maintain a constant output voltage. Conversely, if the input voltage drops below the desired output voltage, the pass transistor increases its resistance to compensate and stabilize the output voltage.

Detailed Application Field Plans

The MIC5219-2.8BM5-TR finds applications in various electronic devices and systems, including but not limited to: - Battery-powered devices - Portable consumer electronics - Embedded systems - IoT devices - Automotive electronics - Medical equipment

Alternative Models

1. LM1117-2.8
2. LT1763-2.8
3. MCP1702-2.8
4. TPS78228

These alternative models offer similar voltage regulation capabilities and can be considered as substitutes for the MIC5219-2.8BM5-TR.

In conclusion, the MIC5219-2.8BM5-TR is a voltage regulator that provides stable and efficient voltage regulation at 2.8V. With its compact package size and low quiescent current, it is suitable for various electronic applications. However, its fixed output voltage and limited power handling capacity should be considered when selecting alternative models for specific requirements.