RT9166-18GVL

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - High output current capability - Adjustable output voltage - Thermal shutdown protection - Short-circuit current limiting - Overcurrent protection

Package: TO-252-3 (DPAK)

Essence: The RT9166-18GVL is a voltage regulator IC that provides a stable output voltage for various electronic devices.

Packaging/Quantity: The RT9166-18GVL is typically sold in reels, with each reel containing 2500 units.

Specifications

• Input Voltage Range: 2.5V to 6V
• Output Voltage Range: 1.8V
• Dropout Voltage: 300mV at 100mA
• Output Current: Up to 1.5A
• Quiescent Current: 80μA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The RT9166-18GVL has three pins:

1. VIN (Pin 1): Input voltage pin. Connects to the power supply.
2. GND (Pin 2): Ground pin. Connected to the common ground of the circuit.
3. VOUT (Pin 3): Output voltage pin. Provides the regulated output voltage.

Functional Features

• Low Dropout Voltage: The RT9166-18GVL has a low dropout voltage, ensuring efficient regulation even when the input voltage is close to the desired output voltage.
• High Output Current Capability: With a maximum output current of 1.5A, this voltage regulator can handle high current loads.
• Adjustable Output Voltage: The output voltage can be adjusted using external resistors, allowing flexibility in various applications.
• Thermal Shutdown Protection: The IC includes a thermal shutdown feature that protects it from overheating, ensuring safe operation.
• Short-Circuit Current Limiting: In the event of a short circuit, the RT9166-18GVL limits the current to prevent damage to the device.
• Overcurrent Protection: The voltage regulator has built-in overcurrent protection, safeguarding against excessive current flow.

Advantages and Disadvantages

Advantages: - Stable output voltage - Wide input voltage range - High output current capability - Adjustable output voltage - Thermal and overcurrent protection

Disadvantages: - Limited output voltage options (only 1.8V) - Requires external resistors for voltage adjustment

Working Principles

The RT9166-18GVL operates as a linear voltage regulator. It uses a pass transistor to regulate the output voltage based on the difference between the input and desired output voltage. The internal circuitry ensures a stable output voltage by adjusting the pass transistor's resistance.

Detailed Application Field Plans

The RT9166-18GVL is commonly used in various electronic devices that require a stable voltage supply. Some typical application fields include:

1. Mobile Devices:

   • Smartphones
   • Tablets
   • Portable media players

2. Computer Systems:

   • Laptops
   • Desktop computers
   • Servers

3. Consumer Electronics:

   • Televisions
   • Audio systems
   • Gaming consoles

4. Industrial Equipment:

   • Power supplies
   • Motor control systems
   • Test and measurement instruments

Detailed and Complete Alternative Models

1. LM317T: Adjustable Voltage Regulator, TO-220 package, up to 1.5A output current.
2. LT1084CP-5: Fixed Voltage Regulator (5V), TO-220 package, up to 5A output current.
3. LM7805: Fixed Voltage Regulator (5V), TO-220 package, up to 1A output current.

These alternative models offer similar functionality and can be used as substitutes for the RT9166-18GVL in various applications.

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