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ISL8844AAUZ-T
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ISL8844AAUZ-T

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - High efficiency - Wide input voltage range - Adjustable output voltage - Overcurrent protection - Thermal shutdown protection

Package: 16-Lead QFN (Quad Flat No-Lead)

Essence: The ISL8844AAUZ-T is a voltage regulator IC designed for high-efficiency power management applications.

Packaging/Quantity: The ISL8844AAUZ-T is available in a 16-Lead QFN package. It is typically sold in reels of 2500 units.

Specifications

  • Input Voltage Range: 4.5V to 28V
  • Output Voltage Range: 0.8V to 5.5V
  • Maximum Output Current: 4A
  • Efficiency: Up to 95%
  • Operating Temperature Range: -40°C to +85°C

Pin Configuration

The ISL8844AAUZ-T has the following pin configuration:

  1. VIN: Input voltage
  2. GND: Ground
  3. FB: Feedback voltage
  4. COMP: Compensation pin
  5. SS/TR: Soft-start/Tracking pin
  6. EN: Enable pin
  7. PGND: Power ground
  8. BOOT: Bootstrap capacitor connection
  9. LX: Switching node
  10. VCC: Supply voltage
  11. AGND: Analog ground
  12. SS/TR: Soft-start/Tracking pin
  13. SS/TR: Soft-start/Tracking pin
  14. SS/TR: Soft-start/Tracking pin
  15. SS/TR: Soft-start/Tracking pin
  16. SS/TR: Soft-start/Tracking pin

Functional Features

  • Wide input voltage range allows for versatile applications.
  • Adjustable output voltage provides flexibility in power management.
  • Overcurrent protection safeguards the circuit from excessive current flow.
  • Thermal shutdown protection prevents overheating and damage to the IC.

Advantages

  • High efficiency results in reduced power consumption and heat generation.
  • Wide input voltage range allows for compatibility with various power sources.
  • Adjustable output voltage enables customization for specific requirements.
  • Overcurrent and thermal shutdown protection enhance reliability and safety.

Disadvantages

  • Limited maximum output current may restrict usage in high-power applications.
  • The 16-Lead QFN package may require specialized equipment for soldering and handling.

Working Principles

The ISL8844AAUZ-T operates as a voltage regulator by converting the input voltage to a regulated output voltage. It utilizes a switching mechanism to efficiently control the power flow. The feedback voltage (FB) pin monitors the output voltage and adjusts the switching frequency accordingly to maintain a stable output. The compensation pin (COMP) is used to optimize the stability of the control loop. The soft-start/tracking pin (SS/TR) controls the startup behavior and can be used for sequencing multiple regulators.

Application Field Plans

The ISL8844AAUZ-T is commonly used in various power management applications, including but not limited to: - Industrial equipment - Telecommunications systems - Automotive electronics - Consumer electronics - LED lighting

Alternative Models

  • ISL8844AIZ-T
  • ISL8844AIRZ-T
  • ISL8844AIRZ-T7A

These alternative models offer similar functionality and characteristics to the ISL8844AAUZ-T and can be considered as replacements depending on specific requirements.

In conclusion, the ISL8844AAUZ-T is a versatile voltage regulator IC with high efficiency, wide input voltage range, and adjustable output voltage. It offers various functional features and advantages, making it suitable for a wide range of power management applications.

技術ソリューションにおける ISL8844AAUZ-T の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of ISL8844AAUZ-T in technical solutions:

  1. Q: What is ISL8844AAUZ-T? A: ISL8844AAUZ-T is a high-performance synchronous buck controller IC used for voltage regulation in various technical applications.

  2. Q: What is the input voltage range supported by ISL8844AAUZ-T? A: The input voltage range supported by ISL8844AAUZ-T is typically between 4.5V and 14V.

  3. Q: What is the output voltage range that can be achieved using ISL8844AAUZ-T? A: The output voltage range achievable with ISL8844AAUZ-T depends on the external components used, but it can typically range from 0.6V to 5.5V.

  4. Q: What is the maximum output current that ISL8844AAUZ-T can handle? A: ISL8844AAUZ-T can handle a maximum output current of up to 20A, depending on the thermal design and external components used.

  5. Q: Can ISL8844AAUZ-T operate in a wide temperature range? A: Yes, ISL8844AAUZ-T is designed to operate in a wide temperature range, typically from -40°C to +85°C.

  6. Q: Does ISL8844AAUZ-T require an external compensation network? A: Yes, ISL8844AAUZ-T requires an external compensation network to stabilize the control loop and ensure proper voltage regulation.

  7. Q: Can ISL8844AAUZ-T support both synchronous and non-synchronous rectification? A: Yes, ISL8844AAUZ-T can support both synchronous and non-synchronous rectification, providing flexibility in design.

  8. Q: What protection features are available in ISL8844AAUZ-T? A: ISL8844AAUZ-T includes various protection features such as overcurrent protection, overvoltage protection, and thermal shutdown.

  9. Q: Can ISL8844AAUZ-T be used in battery-powered applications? A: Yes, ISL8844AAUZ-T can be used in battery-powered applications, thanks to its low quiescent current and high efficiency.

  10. Q: Is there any application note or reference design available for ISL8844AAUZ-T? A: Yes, Intersil provides application notes and reference designs for ISL8844AAUZ-T, which can help in implementing the IC effectively in various technical solutions.

Please note that the answers provided here are general and may vary depending on specific design requirements and application scenarios. It is always recommended to refer to the datasheet and relevant documentation for accurate information.