PQ1R47

Product Overview

• Category: Integrated Circuit
• Use: Voltage Regulator
• Characteristics: Low Dropout, High Current Output
• Package: TO-220
• Essence: Linear Regulator
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.5V to 6.0V
• Output Voltage Range: 1.2V to 5.0V
• Output Current: Up to 1A
• Dropout Voltage: 200mV (typical)
• Quiescent Current: 75µA (typical)
• Line Regulation: ±0.2% (typical)
• Load Regulation: ±0.3% (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The PQ1R47 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 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 and thermal protection safeguards the regulator and connected components.

Advantages

• Compact TO-220 package enables easy integration into various circuit designs.
• Wide input voltage range allows for flexibility in power supply selection.
• Low quiescent current minimizes power consumption during standby or idle modes.
• Robust design ensures reliable operation in harsh environments.

Disadvantages

• Limited output current may not be suitable for high-power applications.
• Dropout voltage may cause efficiency loss in low input voltage scenarios.
• Higher cost compared to non-linear voltage regulators.

Working Principles

The PQ1R47 is a linear voltage regulator that utilizes a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage and adjusts the pass transistor accordingly to maintain a stable output voltage. The dropout voltage is minimized by using a low resistance pass element, allowing for efficient regulation even with small input-output differentials.

Detailed Application Field Plans

The PQ1R47 is commonly used in various electronic devices and systems, including:

1. Battery-powered devices: Portable audio players, handheld gaming consoles.
2. Automotive applications: Infotainment systems, dashboard displays.
3. Industrial equipment: Motor control circuits, sensor interfaces.
4. Communication devices: Wireless routers, network switches.

Detailed and Complete Alternative Models

1. PQ1R48: Similar specifications but with higher output current capability (up to 2A).
2. PQ1R46: Lower output current capability (up to 500mA) but with lower dropout voltage.
3. PQ1R45: Higher output voltage range (up to 12V) suitable for specific applications.

(Note: This list is not exhaustive and other alternative models may exist.)

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