ISL9021AIRUNZ-T

Product Overview

Category: Integrated Circuits (ICs)

Use: Voltage Regulator

Characteristics: - Low Dropout Voltage - High Accuracy - Low Quiescent Current - Thermal Shutdown Protection - Adjustable Output Voltage - Small Package Size

Package: Thin SOT-23-5

Essence: The ISL9021AIRUNZ-T is a voltage regulator IC designed to provide a stable output voltage for various electronic devices.

Packaging/Quantity: The ISL9021AIRUNZ-T is available in tape and reel packaging, with 3000 units per reel.

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage Range: 0.8V to 5.5V
• Dropout Voltage: 200mV at 150mA
• Quiescent Current: 17µA
• Output Current: 150mA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The ISL9021AIRUNZ-T has the following pin configuration:

1. VIN: Input Voltage
2. GND: Ground
3. FB: Feedback Pin
4. EN: Enable Pin
5. VOUT: Output Voltage

Functional Features

• Low Dropout Voltage: The ISL9021AIRUNZ-T has a low dropout voltage, allowing it to regulate the output voltage even when the input voltage is close to the desired output voltage.
• High Accuracy: This voltage regulator provides high accuracy in maintaining the output voltage within specified limits.
• Low Quiescent Current: The quiescent current of only 17µA ensures minimal power consumption when the device is in standby mode.
• Thermal Shutdown Protection: The IC includes thermal shutdown protection, which prevents damage due to excessive temperature.
• Adjustable Output Voltage: The output voltage can be adjusted within a specified range to meet the requirements of different applications.
• Small Package Size: The thin SOT-23-5 package allows for compact and space-saving designs.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient regulation - High accuracy in maintaining output voltage - Low quiescent current for reduced power consumption - Thermal shutdown protection for enhanced reliability - Adjustable output voltage for versatility - Small package size enables compact designs

Disadvantages: - Limited output current capacity (150mA)

Working Principles

The ISL9021AIRUNZ-T operates as a linear voltage regulator. It uses a feedback mechanism to compare the output voltage with a reference voltage and adjusts the internal circuitry to maintain a stable output voltage. The dropout voltage is minimized by using a low resistance pass transistor. The IC also includes thermal shutdown protection to prevent overheating.

Detailed Application Field Plans

The ISL9021AIRUNZ-T is suitable for various applications that require a stable and regulated voltage supply. Some potential application fields include: - Battery-powered devices - Portable electronics - IoT devices - Wearable devices - Medical equipment - Industrial control systems

Detailed and Complete Alternative Models

• ISL9000AIRNIZ-T: Similar voltage regulator IC with adjustable output voltage and low dropout voltage.
• ISL9011AIRNJZ-T: Voltage regulator IC with fixed output voltage and low quiescent current.
• ISL9040AIRNZ-T: High-current voltage regulator IC with adjustable output voltage and thermal shutdown protection.

These alternative models offer similar functionality and can be considered based on specific application requirements.

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