ISL61853HCRZ-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: HCRZ-T package

Essence: The ISL61853HCRZ-T is a voltage regulator IC designed for various applications that require stable and regulated power supply.

Packaging/Quantity: The ISL61853HCRZ-T is available in a HCRZ-T package and is typically sold in reels of 2500 units.

Specifications

• Input Voltage Range: 2.5V to 6V
• Output Voltage Range: 0.8V to 5.5V
• Dropout Voltage: 200mV at 1A load current
• Maximum Output Current: 3A
• Quiescent Current: 120µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The ISL61853HCRZ-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 ISL61853HCRZ-T offers high efficiency, minimizing power loss and maximizing battery life.
• Low Dropout Voltage: With a low dropout voltage of only 200mV, 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 from 0.8V to 5.5V, providing flexibility for different requirements.
• Overcurrent and Thermal Protection: The IC incorporates overcurrent and thermal protection features, ensuring safe operation even under abnormal conditions.

Advantages and Disadvantages

Advantages: - High efficiency - Wide input voltage range - Adjustable output voltage - Overcurrent and thermal protection

Disadvantages: - Dropout voltage of 200mV may not be suitable for applications with very low input voltages.

Working Principles

The ISL61853HCRZ-T is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the feedback voltage (FB) with a reference voltage to control the pass transistor's conduction. When the output voltage deviates from the desired value, the control circuit adjusts the pass transistor's conduction to maintain a stable output voltage.

Detailed Application Field Plans

The ISL61853HCRZ-T is widely used in various electronic devices and systems that require a regulated power supply. Some common application fields include:

1. Mobile devices: smartphones, tablets, portable media players
2. Wireless communication systems: routers, modems, access points
3. Industrial equipment: sensors, actuators, control systems
4. Automotive electronics: infotainment systems, navigation systems, lighting control

Detailed and Complete Alternative Models

1. LM317: A popular adjustable linear voltage regulator with similar characteristics.
2. LT1086: Low dropout positive adjustable linear voltage regulator with higher maximum output current.
3. TPS7A47: Ultra-low noise, high PSRR, low dropout voltage regulator suitable for sensitive audio applications.

These alternative models offer similar functionality and can be considered as substitutes for the ISL61853HCRZ-T depending on specific requirements.

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