ISL9021AIIFZ-T

Product Overview

Category

ISL9021AIIFZ-T belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in electronic devices for voltage regulation and power management.

Characteristics

• High efficiency
• Low quiescent current
• Wide input voltage range
• Adjustable output voltage
• Overcurrent protection
• Thermal shutdown protection

Package

ISL9021AIIFZ-T is available in a small form factor package, such as a 10-pin DFN (Dual Flat No-leads) package.

Essence

The essence of ISL9021AIIFZ-T lies in its ability to efficiently regulate voltage and manage power consumption in electronic devices.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 3000 units per reel/tube.

Specifications

• Input Voltage Range: 2.5V to 5.5V
• Output Voltage Range: 0.6V to VIN
• Quiescent Current: 20µA
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. VIN: Input voltage pin
2. GND: Ground pin
3. EN: Enable pin
4. FB: Feedback pin
5. VOUT: Output voltage pin
6. PG: Power good indicator pin
7. NC: Not connected pin
8. NC: Not connected pin
9. NC: Not connected pin
10. VREF: Reference voltage pin

Functional Features

• Voltage regulation: The ISL9021AIIFZ-T provides stable output voltage regardless of input voltage fluctuations.
• Power management: It efficiently manages power consumption by adjusting the output voltage based on load requirements.
• Overcurrent protection: The IC automatically shuts down in case of excessive current flow, preventing damage to the device.
• Thermal shutdown protection: It safeguards against overheating by shutting down when the temperature exceeds a certain threshold.

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power consumption.
• Wide input voltage range allows compatibility with various power sources.
• Adjustable output voltage provides flexibility for different applications.
• Overcurrent and thermal shutdown protection enhance device safety.

Disadvantages

• Limited output voltage range may not be suitable for certain specialized applications.
• Relatively high quiescent current compared to some alternative models.

Working Principles

The ISL9021AIIFZ-T operates based on a feedback control mechanism. It continuously monitors the output voltage and adjusts the internal circuitry to maintain a stable output within the specified range. This is achieved through a combination of voltage reference, error amplifier, and power MOSFETs.

Detailed Application Field Plans

ISL9021AIIFZ-T finds extensive application in various electronic devices, including but not limited to: - Mobile phones - Tablets - Portable media players - Wearable devices - IoT (Internet of Things) devices

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to ISL9021AIIFZ-T are: - LM1117-3.3 - TPS62130 - LT1763

These models offer similar functionality and characteristics, providing options for designers based on specific requirements.

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