ISL9443IRZ-T7A

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - High efficiency - Low dropout voltage - Wide input voltage range - Adjustable output voltage - Overcurrent protection - Thermal shutdown protection

Package: IRZ Package

Essence: The ISL9443IRZ-T7A is a voltage regulator IC designed for various applications that require stable and regulated power supply.

Packaging/Quantity: The ISL9443IRZ-T7A is available in a standard IRZ package. It is typically sold in reels containing a specific quantity of units.

Specifications

• Input Voltage Range: 2.5V to 5.5V
• Output Voltage Range: 0.8V to VIN
• Maximum Output Current: 1.5A
• Dropout Voltage: 200mV at 1A
• Quiescent Current: 50µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The ISL9443IRZ-T7A 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 ISL9443IRZ-T7A offers high efficiency, minimizing power loss during voltage regulation.
• Low Dropout Voltage: With a low dropout voltage of 200mV at 1A, the IC ensures efficient power delivery even with small voltage differentials.
• Wide Input Voltage Range: The IC can accept input voltages ranging from 2.5V to 5.5V, making it suitable for a wide range of applications.
• Adjustable Output Voltage: The output voltage can be adjusted within the range of 0.8V to VIN, providing flexibility in meeting specific requirements.
• Overcurrent Protection: The IC incorporates overcurrent protection to safeguard against excessive current flow and prevent damage to connected devices.
• Thermal Shutdown Protection: In case of excessive temperature rise, the thermal shutdown feature activates to protect the IC from overheating.

Advantages and Disadvantages

Advantages: - High efficiency ensures minimal power loss - Wide input voltage range allows for versatile applications - Adjustable output voltage provides flexibility - Overcurrent and thermal shutdown protection enhance reliability

Disadvantages: - Limited maximum output current (1.5A)

Working Principles

The ISL9443IRZ-T7A operates as a linear voltage regulator. It regulates the output voltage by adjusting the resistance between the input and output pins based on the feedback received from the FB pin. This feedback loop ensures that the output voltage remains stable and within the desired range.

Detailed Application Field Plans

The ISL9443IRZ-T7A is commonly used in various electronic devices and systems that require regulated power supply. Some application fields include:

1. Mobile Devices: Smartphones, tablets, portable media players
2. Computer Peripherals: USB hubs, external hard drives, printers
3. Automotive Electronics: Infotainment systems, navigation devices, dashboard displays
4. Industrial Equipment: Test and measurement instruments, control systems, motor drives
5. Consumer Electronics: Audio/video equipment, gaming consoles, home automation systems

Detailed and Complete Alternative Models

1. LM317: Adjustable voltage regulator with a wide input voltage range and adjustable output voltage.
2. LT1084: Low dropout voltage regulator with high output current capability.
3. LM1117: Fixed voltage regulator available in various output voltage options.
4. TPS7A47: High-performance voltage regulator with low noise and high PSRR.
5. MAX603: Low-power, low-dropout voltage regulator suitable for battery-powered applications.

These alternative models offer similar functionality to the ISL9443IRZ-T7A and can be considered as alternatives based on specific requirements.

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