MIC2186YQS

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - High output current capability - Adjustable output voltage - Thermal shutdown protection - Short-circuit current limiting

Package: QSOP (Quarter Small Outline Package)

Essence: The MIC2186YQS is a voltage regulator IC that provides a stable output voltage with low dropout. It is commonly used in various electronic devices to regulate and control the voltage supplied to different components.

Packaging/Quantity: The MIC2186YQS is available in a QSOP package, which is a compact and space-saving package. It is typically sold in reels or tubes containing multiple units.

Specifications

• Input Voltage Range: 2.5V - 16V
• Output Voltage Range: 1.25V - 13.5V
• Dropout Voltage: 0.4V at 1A
• Output Current: Up to 3A
• Quiescent Current: 120µA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The MIC2186YQS has the following pin configuration:

```

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| | --| Vout | --| Vin | --| GND | --| Adj | |___________| ```

Functional Features

1. Low Dropout Voltage: The MIC2186YQS has a low dropout voltage, allowing it to regulate the output voltage even when the input voltage is close to the desired output voltage.

2. High Output Current Capability: With a maximum output current of 3A, the MIC2186YQS can provide sufficient power for various applications.

3. Adjustable Output Voltage: The output voltage can be adjusted within a specified range, providing flexibility in different circuit designs.

4. Thermal Shutdown Protection: The IC incorporates a thermal shutdown feature that protects it from overheating, ensuring its reliability and longevity.

5. Short-Circuit Current Limiting: The MIC2186YQS has built-in short-circuit current limiting, preventing excessive current flow in case of a short circuit, thus protecting the device and the connected components.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient regulation - High output current capability for demanding applications - Adjustable output voltage provides design flexibility - Thermal shutdown protection enhances reliability - Short-circuit current limiting protects the device and connected components

Disadvantages: - Limited input voltage range (2.5V - 16V) - Quiescent current may be relatively high compared to some other voltage regulators

Working Principles

The MIC2186YQS operates based on the principle of a linear voltage regulator. It uses a pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. The internal circuitry monitors the output voltage and adjusts the pass transistor accordingly to maintain a stable output voltage.

Detailed Application Field Plans

The MIC2186YQS is commonly used in various electronic devices and applications, including but not limited to: - Power supplies - Battery-powered devices - Automotive electronics - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models to the MIC2186YQS include: - LM317: A popular adjustable voltage regulator with similar features. - LT1083: A high-current, adjustable linear regulator suitable for demanding applications. - TPS7A47: An ultra-low-noise, high-PSRR voltage regulator for sensitive audio or RF applications.

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

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