ISL9021AIRUNZ-T7A

Product Overview

Category

The ISL9021AIRUNZ-T7A belongs to the category of voltage regulators.

Use

It is used to regulate voltage in electronic circuits, ensuring a stable and reliable power supply.

Characteristics

• Low dropout voltage
• High output accuracy
• Low quiescent current
• Thermal overload protection

Package

The ISL9021AIRUNZ-T7A comes in a small package, typically in a surface-mount form factor.

Essence

The essence of the ISL9021AIRUNZ-T7A lies in its ability to provide precise voltage regulation in a compact and efficient manner.

Packaging/Quantity

It is usually supplied in tape and reel packaging with a specific quantity per reel.

Specifications

• Input Voltage Range: 2.3V to 5.5V
• Output Voltage Range: 0.8V to 3.3V
• Maximum Output Current: 300mA
• Dropout Voltage: 200mV at 100mA
• Quiescent Current: 20µA
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The ISL9021AIRUNZ-T7A typically has a standard pin configuration with input, output, and ground pins, as well as additional pins for enable and other features.

Functional Features

• Low dropout voltage for extended battery life
• High PSRR (Power Supply Rejection Ratio) for noise-sensitive applications
• Thermal shutdown and current limit protection
• Adjustable output voltage option

Advantages and Disadvantages

Advantages

• Small form factor
• Low dropout voltage
• Wide input voltage range
• Low quiescent current

Disadvantages

• Limited maximum output current
• Sensitive to thermal conditions

Working Principles

The ISL9021AIRUNZ-T7A operates by comparing the output voltage to a reference voltage and adjusting the pass device to maintain a constant output voltage despite changes in input voltage or load.

Detailed Application Field Plans

The ISL9021AIRUNZ-T7A is commonly used in portable electronic devices such as smartphones, tablets, and wearable devices where space and power efficiency are critical.

Detailed and Complete Alternative Models

Some alternative models to the ISL9021AIRUNZ-T7A include the LT1763, TPS799, and MCP1703, each offering similar voltage regulation capabilities with their own unique features and specifications.

In conclusion, the ISL9021AIRUNZ-T7A is a versatile voltage regulator suitable for various portable electronic applications, offering precise voltage regulation in a compact package. Its low dropout voltage and high PSRR make it an ideal choice for noise-sensitive environments, although its limited maximum output current and sensitivity to thermal conditions should be considered in certain applications.

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