ISL9443IRZ-T

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-T package

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

Packaging/Quantity: The ISL9443IRZ-T is available in tape and reel packaging, with 2500 units per reel.

Specifications

Input Voltage Range: 2.7V to 5.5V
Output Voltage Range: 0.8V to VIN
Dropout Voltage: 200mV at 1A
Quiescent Current: 50µA
Output Current: Up to 1A
Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The ISL9443IRZ-T has the following pin configuration:

VIN: Input voltage pin
GND: Ground pin
EN: Enable pin
FB: Feedback pin
VOUT: Output voltage pin

Functional Features

High Efficiency: The ISL9443IRZ-T offers high efficiency, minimizing power loss during voltage regulation.
Low Dropout Voltage: With a low dropout voltage of 200mV at 1A, the IC can maintain a stable output voltage even when the input voltage is close to the desired output voltage.
Wide Input Voltage Range: The IC can operate within a wide input voltage range of 2.7V to 5.5V, making it suitable for various applications.
Adjustable Output Voltage: The output voltage can be adjusted from 0.8V to the input voltage (VIN) using external resistors.
Overcurrent Protection: The IC incorporates overcurrent protection, safeguarding the circuit and load from excessive current.
Thermal Shutdown Protection: In case of excessive temperature, the IC automatically shuts down to prevent damage.

Advantages and Disadvantages

Advantages: - High efficiency - Wide input voltage range - Adjustable output voltage - Overcurrent and thermal protection

Disadvantages: - Limited maximum output current (up to 1A)

Working Principles

The ISL9443IRZ-T is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It compares the feedback voltage (FB) with a reference voltage to adjust the pass transistor's resistance, maintaining a stable output voltage. The enable pin (EN) controls the regulator's operation, allowing it to be turned on or off as needed.

Detailed Application Field Plans

The ISL9443IRZ-T is commonly used in various applications, including: 1. Battery-powered devices 2. Portable electronic devices 3. Automotive electronics 4. Industrial control systems 5. Communication equipment

Detailed and Complete Alternative Models

Some alternative models to the ISL9443IRZ-T include: 1. LM317: A popular adjustable linear voltage regulator with similar features. 2. LT1086: A low dropout voltage regulator capable of higher output currents. 3. TPS7A47: An ultra-low noise, high PSRR linear regulator suitable for sensitive applications.

These alternative models offer different specifications and may better suit specific requirements depending on the application.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací ISL9443IRZ-T v technických řešeních

Sure! Here are 10 common questions and answers related to the application of ISL9443IRZ-T in technical solutions:

Q: What is ISL9443IRZ-T? A: ISL9443IRZ-T is a voltage regulator IC (integrated circuit) designed for use in various technical solutions.
Q: What is the input voltage range of ISL9443IRZ-T? A: The input voltage range of ISL9443IRZ-T is typically between 4.5V and 36V.
Q: What is the output voltage range of ISL9443IRZ-T? A: The output voltage range of ISL9443IRZ-T can be adjusted from 0.8V to 24V.
Q: What is the maximum output current of ISL9443IRZ-T? A: The maximum output current of ISL9443IRZ-T is typically around 3A.
Q: Can ISL9443IRZ-T handle high-frequency switching? A: Yes, ISL9443IRZ-T is designed to handle high-frequency switching up to several hundred kilohertz.
Q: Does ISL9443IRZ-T have built-in protection features? A: Yes, ISL9443IRZ-T includes various protection features such as overcurrent protection, thermal shutdown, and undervoltage lockout.
Q: Is ISL9443IRZ-T suitable for automotive applications? A: Yes, ISL9443IRZ-T is automotive-grade and can be used in various automotive applications.
Q: Can ISL9443IRZ-T operate in a wide temperature range? A: Yes, ISL9443IRZ-T is designed to operate in a wide temperature range, typically from -40°C to 125°C.
Q: Does ISL9443IRZ-T require any external components for operation? A: Yes, ISL9443IRZ-T requires a few external components such as input and output capacitors for stable operation.
Q: What package does ISL9443IRZ-T come in? A: ISL9443IRZ-T is available in a small outline integrated circuit (SOIC) package.

Please note that the answers provided here are general and may vary depending on the specific application and use case. It is always recommended to refer to the datasheet and consult with the manufacturer for detailed information.