RT9078-18GQZ

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

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

Package: QFN-16

Essence: The RT9078-18GQZ is a voltage regulator IC designed to provide a stable and regulated output voltage for various electronic devices.

Packaging/Quantity: The RT9078-18GQZ is available in a QFN-16 package. It is typically sold in reels containing a quantity of 2500 units.

Specifications

• Input Voltage Range: 2.5V to 6V
• Output Voltage Range: 1.8V
• Dropout Voltage: 200mV at 300mA
• Output Current: Up to 500mA
• Quiescent Current: 75µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The RT9078-18GQZ has the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. EN: Enable pin
4. FB: Feedback pin
5. VOUT: Output voltage pin

Functional Features

• Low dropout voltage ensures efficient power conversion even with small input-output voltage differentials.
• High output current capability allows the IC to power a wide range of electronic components.
• Wide input voltage range enables compatibility with various power sources.
• Adjustable output voltage provides flexibility in meeting specific device requirements.
• Thermal shutdown protection prevents overheating and damage to the IC.
• Short circuit protection safeguards against excessive current flow.

Advantages and Disadvantages

Advantages: - Efficient power conversion - Wide input voltage range - Adjustable output voltage - Thermal and short circuit protection

Disadvantages: - Limited output current compared to some other voltage regulators in the market - Only available in a QFN-16 package, which may not be suitable for all applications

Working Principles

The RT9078-18GQZ operates based on the principle of regulating the output voltage by adjusting the resistance within the IC. It uses a feedback mechanism to compare the actual output voltage with the desired value and adjusts the internal circuitry accordingly. This ensures a stable and regulated output voltage despite variations in the input voltage or load conditions.

Detailed Application Field Plans

The RT9078-18GQZ is commonly used in various electronic devices that require a stable and regulated power supply. Some typical application fields include:

1. Mobile devices: Smartphones, tablets, portable media players.
2. Wireless communication systems: Wi-Fi modules, Bluetooth devices.
3. Consumer electronics: Digital cameras, portable gaming consoles.
4. Industrial equipment: Sensors, control systems, motor drivers.
5. Automotive electronics: Infotainment systems, navigation devices.

Detailed and Complete Alternative Models

1. RT9078-33GQW: Similar to RT9078-18GQZ but with an output voltage of 3.3V.
2. RT9078-25GQX: Similar to RT9078-18GQZ but with an output voltage of 2.5V.
3. RT9078-15GQY: Similar to RT9078-18GQZ but with an output voltage of 1.5V.
4. RT9078-12GQV: Similar to RT9078-18GQZ but with an output voltage of 1.2V.

These alternative models provide options for different output voltage requirements while maintaining similar characteristics and features as the RT9078-18GQZ.

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