IRU1117-18CPTR

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: TO-263-3 (D2PAK)

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

Packaging/Quantity: The IRU1117-18CPTR is typically sold in reels of 2500 units.

Specifications

• Input Voltage Range: 2.5V to 18V
• Output Voltage: 1.8V
• Output Current: Up to 800mA
• Dropout Voltage: 300mV at 800mA
• Quiescent Current: 120µA
• Line Regulation: 0.04%/V
• Load Regulation: 0.2%
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The IRU1117-18CPTR 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

• Low dropout voltage allows operation with very small input-output differentials.
• High output current capability enables the regulator to power a wide range of electronic devices.
• Thermal shutdown protection prevents the IC from overheating under excessive load or high ambient temperature conditions.
• Short circuit current limit protects the regulator and the connected circuitry from damage in case of a short circuit.
• Fast transient response ensures stability and accuracy of the output voltage during sudden load changes.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient power conversion. - High output current capability makes it suitable for a wide range of applications. - Thermal shutdown protection enhances reliability and safety. - Fast transient response provides stability in dynamic load conditions.

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

Working Principles

The IRU1117-18CPTR is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with a fraction of the output voltage, adjusting the pass transistor's resistance to maintain a stable output voltage.

Detailed Application Field Plans

The IRU1117-18CPTR can be used in various electronic devices and applications, including but not limited to: - Power supplies - Battery-powered devices - Embedded systems - Consumer electronics - Industrial equipment - Automotive electronics

Detailed and Complete Alternative Models

Some alternative models to the IRU1117-18CPTR include: - LM1117-1.8 (Texas Instruments) - LT1117-1.8 (Linear Technology) - MCP1701-1802E/TO (Microchip Technology) - TS1117-1.8 (STMicroelectronics)

These alternative models offer similar functionality and characteristics, providing options for different design requirements.

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