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ISL8843AABZ-T
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ISL8843AABZ-T

Product Overview

The ISL8843AABZ-T belongs to the category of voltage regulators and is commonly used in power management applications. This device is known for its high efficiency, low dropout voltage, and excellent line and load transient response. The package type for ISL8843AABZ-T is a small 8-lead DFN (3mmx3mm) package, making it suitable for space-constrained designs. It is designed to provide a regulated output voltage from an unregulated input voltage source.

Basic Information

  • Category: Voltage Regulator
  • Use: Power Management
  • Characteristics: High efficiency, low dropout voltage, excellent line and load transient response
  • Package: 8-lead DFN (3mmx3mm)
  • Essence: Regulated output voltage from unregulated input source
  • Packaging/Quantity: Varies by manufacturer

Specifications

  • Input Voltage Range: 2.5V to 5.5V
  • Output Voltage Range: 0.6V to 3.3V
  • Maximum Output Current: 3A
  • Dropout Voltage: 200mV at 3A
  • Quiescent Current: 75µA
  • Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

  1. VIN: Input Voltage
  2. GND: Ground
  3. EN: Enable Pin
  4. FB: Feedback Pin
  5. COMP: Compensation Pin
  6. SS/TR: Soft-Start/Tracking Pin
  7. SW: Switch Node
  8. PG: Power Good Indicator

Functional Features

  • High Efficiency
  • Low Dropout Voltage
  • Excellent Line and Load Transient Response
  • Overcurrent Protection
  • Thermal Shutdown Protection
  • Power Good Indicator

Advantages and Disadvantages

Advantages

  • High Efficiency
  • Wide Input Voltage Range
  • Small Package Size
  • Power Good Indicator

Disadvantages

  • Limited Maximum Output Current (3A)

Working Principles

The ISL8843AABZ-T operates by regulating the output voltage based on the feedback received from the output through the FB pin. The internal control circuitry adjusts the duty cycle of the internal switch to maintain a constant output voltage, even with variations in the input voltage and load conditions.

Detailed Application Field Plans

The ISL8843AABZ-T is commonly used in various applications such as: - Battery-Powered Devices - Portable Electronics - Point-of-Load Regulation - Industrial Control Systems - Automotive Electronics

Detailed and Complete Alternative Models

Some alternative models to ISL8843AABZ-T include: - LM1117 - LT1086 - TPS7A47

In conclusion, the ISL8843AABZ-T is a versatile voltage regulator with high efficiency and excellent performance characteristics, making it suitable for a wide range of power management applications.

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Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van ISL8843AABZ-T in technische oplossingen

  1. What is the ISL8843AABZ-T?

    • The ISL8843AABZ-T is a synchronous buck controller designed for high efficiency, low noise, and fast transient response in various technical solutions.

  2. What is the input voltage range of the ISL8843AABZ-T?

    • The ISL8843AABZ-T has an input voltage range of 4.5V to 28V, making it suitable for a wide range of applications.

  3. What is the output current capability of the ISL8843AABZ-T?

    • The ISL8843AABZ-T can support output currents up to 25A, making it suitable for powering a variety of loads.

  4. What are the key features of the ISL8843AABZ-T?

    • Some key features of the ISL8843AABZ-T include adjustable switching frequency, overcurrent protection, thermal shutdown, and programmable soft-start.

  5. What type of applications is the ISL8843AABZ-T suitable for?

    • The ISL8843AABZ-T is suitable for a wide range of applications including industrial, automotive, and telecommunications equipment.

  6. What is the typical efficiency of the ISL8843AABZ-T?

    • The ISL8843AABZ-T offers high efficiency, typically up to 95%, helping to minimize power loss and maximize energy savings.

  7. Does the ISL8843AABZ-T require external compensation components?

    • Yes, the ISL8843AABZ-T requires external compensation components to optimize its performance based on the specific application requirements.

  8. What is the operating temperature range of the ISL8843AABZ-T?

    • The ISL8843AABZ-T has an operating temperature range of -40°C to 125°C, ensuring reliable operation in harsh environments.

  9. Can the ISL8843AABZ-T be used in a multi-phase configuration?

    • Yes, the ISL8843AABZ-T can be used in a multi-phase configuration to support higher output currents and improve load regulation.

  10. Is there a reference design available for the ISL8843AABZ-T?

    • Yes, Intersil provides reference designs and application notes to assist with the implementation of the ISL8843AABZ-T in various technical solutions.