ISL9021II1Z-T

Product Overview

Category: Integrated Circuits (ICs)

Use: Voltage Regulator

Characteristics: - Low Dropout Voltage - High Output Current - Adjustable Output Voltage - Thermal Shutdown Protection

Package: SOT-23-5

Essence: The ISL9021II1Z-T is a voltage regulator IC designed for various applications that require stable and regulated power supply.

Packaging/Quantity: The ISL9021II1Z-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
• Maximum Output Current: 300mA
• Dropout Voltage: 200mV at 100mA
• Quiescent Current: 20µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The ISL9021II1Z-T has a total of 5 pins:

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

Functional Features

• Low dropout voltage ensures efficient power conversion.
• High output current capability allows for powering a wide range of devices.
• Adjustable output voltage provides flexibility in different applications.
• Thermal shutdown protection prevents the IC from overheating.

Advantages and Disadvantages

Advantages: - Wide input voltage range - Low quiescent current - Small package size - Excellent thermal management

Disadvantages: - Limited maximum output current - Not suitable for high-power applications

Working Principles

The ISL9021II1Z-T operates as a linear voltage regulator. It takes an input voltage and regulates it to a stable output voltage, regardless of any fluctuations in the input voltage or load conditions. The IC achieves this by using a feedback mechanism that continuously adjusts the internal circuitry to maintain the desired output voltage.

Detailed Application Field Plans

The ISL9021II1Z-T is commonly used in various battery-powered applications, such as:

1. Mobile devices (smartphones, tablets)
2. Portable medical devices
3. Wearable electronics
4. IoT devices
5. Wireless communication modules

Detailed and Complete Alternative Models

1. MCP1700-3302E/TO: Low Dropout Voltage Regulator, SOT-23-5 package
2. LM1117IMPX-3.3/NOPB: Adjustable Voltage Regulator, SOT-23-5 package
3. TPS79333DBVR: Low Quiescent Current Voltage Regulator, SOT-23-5 package
4. XC6206P332MR: Low Dropout Voltage Regulator, SOT-23-5 package
5. MAX603CPA: Adjustable Voltage Regulator, SOT-23-5 package

These alternative models offer similar functionality and can be considered as replacements for the ISL9021II1Z-T in different applications.

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