RT9166-18GX

Product Overview

Category: Voltage Regulator
Use: To regulate voltage in electronic circuits
Characteristics: High efficiency, low dropout voltage, compact size
Package: SOT-223
Essence: Integrated circuit voltage regulator
Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.5V to 6V
• Output Voltage: 1.8V
• Output Current: Up to 1A
• Dropout Voltage: 300mV at 1A
• Line Regulation: ±0.2%
• Load Regulation: ±0.4%
• Quiescent Current: 50μA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The RT9166-18GX has three pins:

1. VIN (Pin 1): Input voltage pin
2. GND (Pin 2): Ground pin
3. VOUT (Pin 3): Output voltage pin

Functional Features

• High efficiency: The RT9166-18GX offers high efficiency, minimizing power loss during voltage regulation.
• Low dropout voltage: With a dropout voltage of only 300mV at 1A, this voltage regulator ensures stable output even when the input voltage is close to the desired output voltage.
• Compact size: The SOT-223 package allows for easy integration into various electronic circuits.

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption. - Low dropout voltage ensures stable output even with varying input voltages. - Compact size enables easy integration into space-constrained designs.

Disadvantages: - Limited output current capacity of up to 1A may not be sufficient for certain applications requiring higher currents. - Operating temperature range of -40°C to +85°C may not be suitable for extreme temperature environments.

Working Principles

The RT9166-18GX is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a stable output voltage. The dropout voltage is minimized by using a low resistance pass transistor.

Detailed Application Field Plans

The RT9166-18GX can be used in various applications, including but not limited to: 1. Battery-powered devices: Provides a stable voltage supply for portable electronic devices. 2. Automotive electronics: Ensures reliable voltage regulation in automotive systems. 3. Industrial control systems: Suitable for voltage regulation in industrial automation equipment. 4. Communication devices: Used to stabilize voltage in wireless communication systems.

Detailed and Complete Alternative Models

1. RT9166-18GQ: Similar specifications and features, available in a different package (SOT-89).
2. RT9166-18GB: Lower dropout voltage (200mV at 1A), otherwise similar specifications and features.
3. RT9166-18GY: Higher output current capacity (up to 1.5A), otherwise similar specifications and features.

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

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