IRU1117-18CYTR

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - High output current capability - Thermal shutdown protection - Short-circuit current limit - Fast transient response

Package: SOT-223

Essence: The IRU1117-18CYTR is a low dropout voltage regulator designed to provide a stable and regulated output voltage for various electronic devices.

Packaging/Quantity: The IRU1117-18CYTR is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: 2.5V - 18V
• Output Voltage: 1.8V
• Output Current: Up to 800mA
• Dropout Voltage: 300mV at 800mA
• Line Regulation: ±0.2%
• Load Regulation: ±0.4%
• Quiescent Current: 120µA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The IRU1117-18CYTR has the following pin configuration:

1. VIN (Input Voltage)
2. GND (Ground)
3. VOUT (Output Voltage)

Functional Features

• Low dropout voltage allows for efficient power conversion.
• High output current capability enables the regulator to handle demanding loads.
• Thermal shutdown protection prevents overheating and damage to the device.
• Short-circuit current limit protects against excessive current flow during a short circuit.
• Fast transient response ensures stability and accuracy of the output voltage.

Advantages and Disadvantages

Advantages: - Low dropout voltage minimizes power dissipation. - High output current capability suits a wide range of applications. - Thermal shutdown protection enhances reliability. - Fast transient response ensures stability in dynamic load conditions.

Disadvantages: - Limited output voltage options (only 1.8V). - Relatively high quiescent current compared to some other regulators.

Working Principles

The IRU1117-18CYTR operates as a linear voltage regulator. It regulates the output voltage by maintaining a constant voltage drop across its internal pass transistor. The device compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain the desired output voltage.

Detailed Application Field Plans

The IRU1117-18CYTR is commonly used in various electronic devices that require a stable and regulated 1.8V power supply. Some typical application fields include:

1. Mobile devices: Smartphones, tablets, portable media players.
2. Computer peripherals: Hard drives, optical drives, USB hubs.
3. Industrial equipment: Sensors, control systems, motor drivers.
4. Automotive electronics: Infotainment systems, navigation units, lighting controls.
5. Consumer electronics: Audio/video equipment, gaming consoles, digital cameras.

Detailed and Complete Alternative Models

1. LM1117-1.8: Similar low dropout voltage regulator with adjustable output voltage.
2. LT1763-1.8: Low dropout voltage regulator with ultra-low quiescent current.
3. TPS7A1801: High-performance low dropout voltage regulator with wide input voltage range.

These alternative models offer similar functionality and can be considered as substitutes for the IRU1117-18CYTR depending on specific requirements and design constraints.

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