ISL61853NIRZ-T

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

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

Package: NIRZ-T package

Essence: The ISL61853NIRZ-T is a voltage regulator IC designed for various applications that require stable and regulated power supply.

Packaging/Quantity: The ISL61853NIRZ-T is available in a NIRZ-T package, which consists of a small plastic body with exposed pads on the bottom. It is typically sold in reels or tubes containing multiple units.

Specifications

• Input Voltage Range: 2.5V to 6V
• Output Voltage Range: 0.8V to 5.5V
• Maximum Output Current: 1.5A
• Dropout Voltage: 200mV at 1A
• Quiescent Current: 50µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The ISL61853NIRZ-T has the following pin configuration:

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

Functional Features

• High Efficiency: The ISL61853NIRZ-T offers high efficiency, minimizing power loss and maximizing battery life in portable devices.
• Low Dropout Voltage: With a low dropout voltage of only 200mV at 1A, the IC can maintain a stable output voltage even when the input voltage is close to the desired output voltage.
• Wide Input Voltage Range: The IC can accept input voltages ranging from 2.5V to 6V, making it suitable for a wide range of applications.
• Adjustable Output Voltage: The output voltage can be adjusted within the range of 0.8V to 5.5V, providing flexibility for different system requirements.
• Overcurrent and Thermal Protection: The ISL61853NIRZ-T incorporates overcurrent and thermal protection mechanisms to safeguard against excessive current or temperature conditions.

Advantages and Disadvantages

Advantages: - High efficiency leads to longer battery life - Wide input voltage range allows for versatile applications - Adjustable output voltage provides flexibility - Overcurrent and thermal protection ensure device safety

Disadvantages: - Limited maximum output current of 1.5A may not be sufficient for high-power applications

Working Principles

The ISL61853NIRZ-T operates as a linear voltage regulator. It regulates the output voltage by adjusting the resistance between the input and output terminals. When the input voltage exceeds the desired output voltage, the IC reduces the resistance to maintain a stable output voltage. Conversely, if the input voltage drops below the desired output voltage, the IC increases the resistance to compensate and maintain the desired output voltage.

Detailed Application Field Plans

The ISL61853NIRZ-T is commonly used in various electronic devices and systems that require a stable and regulated power supply. Some typical application fields include:

1. Mobile Devices: Smartphones, tablets, portable media players, etc.
2. Wearable Electronics: Smartwatches, fitness trackers, wireless earbuds, etc.
3. IoT Devices: Home automation systems, smart sensors, connected appliances, etc.
4. Automotive Electronics: Infotainment systems, navigation systems, lighting control, etc.
5. Industrial Equipment: Test and measurement instruments, control systems, robotics, etc.

Detailed and Complete Alternative Models

1. LM317: A popular linear voltage regulator with adjustable output voltage and high current capability.
2. LT1084: A low dropout voltage regulator with adjustable output voltage and high accuracy.
3. TPS7A4700: An ultra-low noise, high PSRR (Power Supply Rejection Ratio) voltage regulator suitable for sensitive audio applications.

These alternative models offer similar functionality to the ISL61853NIRZ-T and can be considered as substitutes depending on specific requirements.

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