RT9018A-12GQW

Product Overview

Category

RT9018A-12GQW belongs to the category of voltage regulators.

Use

It is commonly used in electronic circuits to regulate and stabilize the output voltage.

Characteristics

• High efficiency
• Low dropout voltage
• Wide input voltage range
• Overcurrent protection
• Thermal shutdown protection

Package

RT9018A-12GQW is available in a small surface-mount package, typically a QFN (Quad Flat No-leads) package.

Essence

The essence of RT9018A-12GQW lies in its ability to provide a stable output voltage despite variations in input voltage and load conditions.

Packaging/Quantity

RT9018A-12GQW is usually packaged in reels or tubes, with a typical quantity of 3000 units per reel or tube.

Specifications

• Input Voltage Range: 2.5V - 5.5V
• Output Voltage: 1.2V
• Output Current: Up to 500mA
• Dropout Voltage: 200mV at 100mA
• Quiescent Current: 75µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

RT9018A-12GQW 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

• High Efficiency: The RT9018A-12GQW exhibits high efficiency, minimizing power loss during voltage regulation.
• Low Dropout Voltage: It maintains a low dropout voltage even under heavy load conditions, ensuring a stable output voltage.
• Wide Input Voltage Range: The regulator can accept a wide range of input voltages, making it versatile for various applications.
• Overcurrent Protection: It incorporates overcurrent protection to safeguard the circuit from excessive current flow.
• Thermal Shutdown Protection: The regulator includes thermal shutdown protection, preventing damage due to excessive heat.

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power consumption.
• Low dropout voltage ensures stable output voltage even under heavy loads.
• Wide input voltage range allows for flexibility in different applications.
• Overcurrent protection prevents damage to the circuit.
• Thermal shutdown protection safeguards against overheating.

Disadvantages

• Limited output current capacity (up to 500mA).
• Requires external components for proper operation.

Working Principles

RT9018A-12GQW operates based on the principle of feedback control. It compares the output voltage with a reference voltage and adjusts the internal circuitry to maintain a stable output voltage. By continuously monitoring and adjusting, it compensates for variations in input voltage and load conditions, ensuring a regulated output voltage.

Detailed Application Field Plans

RT9018A-12GQW finds applications in various electronic devices and systems, including but not limited to: - Mobile phones - Tablets - Portable media players - Wireless communication devices - Battery-powered devices - IoT (Internet of Things) devices

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to RT9018A-12GQW are: - LM1117-3.3 - LT1761ES5-3.3 - MCP1700-3302E/TO

These alternatives provide comparable voltage regulation capabilities and can be used as substitutes depending on specific requirements.

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