ISL854102FRZ-T

Product Overview

Category: Integrated Circuits (ICs)

Use: Voltage Regulator

Characteristics: - High efficiency - Low dropout voltage - Wide input voltage range - Adjustable output voltage - Overcurrent and thermal protection

Package: QFN (Quad Flat No-leads)

Essence: The ISL854102FRZ-T is a voltage regulator IC designed to provide a stable output voltage from a varying input voltage source.

Packaging/Quantity: The ISL854102FRZ-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
• Output Current: Up to 1A
• Dropout Voltage: 200mV at 1A
• Quiescent Current: 60µA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The ISL854102FRZ-T has the following pin configuration:

1. VIN: Input Voltage
2. GND: Ground
3. EN: Enable Pin
4. FB: Feedback Pin
5. VOUT: Output Voltage
6. PG: Power Good Indicator

Functional Features

• High Efficiency: The ISL854102FRZ-T utilizes advanced circuitry to achieve high efficiency, minimizing power losses.
• Low Dropout Voltage: The regulator maintains a low dropout voltage even under heavy load conditions, ensuring stable output voltage.
• Wide Input Voltage Range: The IC can operate within a wide input voltage range, making it suitable for various applications.
• Adjustable Output Voltage: The output voltage can be adjusted using external resistors, providing flexibility in different scenarios.
• Overcurrent and Thermal Protection: The IC incorporates protection mechanisms to prevent damage from overcurrent and excessive temperature.

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption. - Wide input voltage range allows for versatile applications. - Adjustable output voltage provides flexibility. - Overcurrent and thermal protection ensure device safety.

Disadvantages: - Limited output current capacity of 1A may not be sufficient for high-power applications. - The QFN package may require specialized equipment for soldering.

Working Principles

The ISL854102FRZ-T operates as a linear voltage regulator. It takes the varying input voltage and regulates it to provide a stable output voltage. The internal circuitry adjusts the output voltage based on the feedback received from the FB pin. The EN pin controls the enable/disable state of the regulator. When enabled, the IC actively regulates the output voltage; when disabled, it enters a low-power standby mode.

Detailed Application Field Plans

The ISL854102FRZ-T is commonly used in various electronic devices and systems, including: - Battery-powered devices - Portable consumer electronics - Industrial control systems - Automotive applications - IoT (Internet of Things) devices

Alternative Models

• LM1117-3.3V: A popular alternative with similar specifications and functionality.
• TPS7A4700: Offers higher output current capability but at the expense of increased dropout voltage.
• LT1763: Provides lower quiescent current but with a narrower input voltage range.

These alternative models can be considered based on specific application requirements and design constraints.

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