PQ1R27

Product Overview

• Category: Integrated Circuit
• Use: Voltage Regulator
• Characteristics: Low Dropout, High Current Output
• Package: TO-220
• Essence: Monolithic IC
• Packaging/Quantity: Tape and Reel, 1000 pieces per reel

Specifications

• Input Voltage Range: 2.5V to 6.0V
• Output Voltage Range: 1.2V to 5.0V
• Output Current: Up to 2.7A
• Dropout Voltage: 0.3V (typical)
• Line Regulation: ±0.05% (typical)
• Load Regulation: ±0.1% (typical)
• Quiescent Current: 75µA (typical)

Detailed Pin Configuration

The PQ1R27 voltage regulator has the following pin configuration:

1. VIN: Input Voltage
2. GND: Ground
3. VOUT: Output Voltage

Functional Features

• Low dropout voltage ensures stable output even with small input-output voltage differentials.
• High current output capability allows for powering a wide range of devices.
• Excellent line and load regulation provide consistent performance under varying conditions.
• Built-in overcurrent protection safeguards the circuitry from excessive currents.
• Thermal shutdown feature prevents overheating and damage to the IC.

Advantages

• Compact and easy-to-use package.
• Wide input voltage range enables versatile applications.
• High output current capability suits power-hungry devices.
• Low dropout voltage minimizes power dissipation.
• Excellent line and load regulation ensure stable output.

Disadvantages

• Limited output voltage range may not be suitable for all applications.
• Higher quiescent current compared to some alternative models.
• Requires external capacitors for stability.

Working Principles

The PQ1R27 is a monolithic voltage regulator that utilizes a precision reference, error amplifier, and power transistor to regulate the output voltage. It operates by comparing the feedback voltage with the reference voltage and adjusting the power transistor accordingly to maintain a stable output voltage.

Detailed Application Field Plans

The PQ1R27 is commonly used in various electronic devices and systems, including:

1. Battery-powered devices: Portable audio players, handheld gaming consoles.
2. Automotive applications: Car audio systems, navigation systems.
3. Industrial equipment: Motor control circuits, power supplies.
4. Communication devices: Wireless routers, modems.

Detailed and Complete Alternative Models

1. PQ1R25: Similar specifications but lower output current capability.
2. PQ1R29: Higher output voltage range but lower output current capability.
3. PQ1R26: Lower dropout voltage but higher quiescent current.

These alternative models provide flexibility in choosing the most suitable voltage regulator based on specific requirements.

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