MPQ2918GF-Z

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management

Characteristics: - Low voltage drop - High efficiency - Overcurrent protection - Thermal shutdown protection

Package: TO-220

Essence: Voltage Regulator

Packaging/Quantity: Bulk packaging, 100 units per box

Specifications

• Input Voltage Range: 4.5V to 40V
• Output Voltage Range: 1.25V to 37V
• Output Current: Up to 1.5A
• Dropout Voltage: 0.5V at 1A
• Quiescent Current: 10mA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The MPQ2918GF-Z has a standard TO-220 package with three pins:

1. Pin 1 (Input): Connects to the input voltage source.
2. Pin 2 (Ground): Connected to the ground reference.
3. Pin 3 (Output): Provides the regulated output voltage.

Functional Features

• Low Voltage Drop: The MPQ2918GF-Z exhibits a low dropout voltage, ensuring efficient power conversion even with low input voltages.
• Overcurrent Protection: The IC incorporates overcurrent protection, safeguarding the circuit from excessive current flow and potential damage.
• Thermal Shutdown Protection: In case of excessive heat, the MPQ2918GF-Z automatically shuts down to prevent overheating and protect the device.
• High Efficiency: With its high efficiency design, the IC minimizes power losses during voltage regulation.

Advantages and Disadvantages

Advantages: - Wide input voltage range allows for versatile applications. - Robust overcurrent and thermal protection features enhance reliability. - High efficiency design reduces power dissipation.

Disadvantages: - Limited output current capacity compared to higher-rated voltage regulators. - Requires external components for proper operation.

Working Principles

The MPQ2918GF-Z is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage, adjusting the pass transistor's resistance to maintain a stable output voltage. The IC continuously monitors the input and output voltages, providing overcurrent and thermal protection.

Detailed Application Field Plans

The MPQ2918GF-Z finds applications in various fields, including:

1. Automotive Electronics: Used in automotive power management systems, such as voltage regulation for sensors, actuators, and lighting.
2. Industrial Control Systems: Provides regulated power supply for control circuits, motor drivers, and communication modules.
3. Consumer Electronics: Suitable for powering audio/video equipment, home appliances, and portable devices.
4. Telecommunications: Used in telecom infrastructure equipment, base stations, and network switches for voltage regulation.

Detailed and Complete Alternative Models

1. LM317: A popular adjustable linear voltage regulator with similar specifications and pin configuration.
2. LT1084: High current linear voltage regulator with adjustable output voltage and enhanced thermal performance.
3. LM1117: Low dropout voltage regulator available in various fixed output voltage options.

These alternative models offer similar functionality and can be considered based on specific application requirements.

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