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ISL78228ARZ-T
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ISL78228ARZ-T

Product Overview

Category

ISL78228ARZ-T belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in power management applications.

Characteristics

  • Integrated voltage regulator
  • High efficiency
  • Low quiescent current
  • Wide input voltage range

Package

ISL78228ARZ-T is available in a small outline package (SOIC) with 16 pins.

Essence

The essence of this product lies in its ability to efficiently regulate voltage in various power management applications.

Packaging/Quantity

ISL78228ARZ-T is typically packaged in reels and comes in quantities of 2500 units per reel.

Specifications

  • Input Voltage Range: 4.5V to 60V
  • Output Voltage Range: 0.8V to 55V
  • Output Current: Up to 2A
  • Quiescent Current: 25µA
  • Switching Frequency: 500kHz
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

  1. VIN: Input voltage pin
  2. GND: Ground pin
  3. FB: Feedback pin for output voltage regulation
  4. COMP: Compensation pin for stability control
  5. EN: Enable pin for turning the device on/off
  6. SS/TR: Soft-start/Tracking pin for controlling startup behavior
  7. PGND: Power ground pin
  8. SW: Switching node pin for connecting the external inductor
  9. BOOT: Bootstrap capacitor connection pin
  10. VCC: Supply voltage pin for internal circuitry
  11. PG: Power good indicator pin
  12. AGND: Analog ground pin
  13. SS/TR: Soft-start/Tracking pin for controlling startup behavior
  14. FB: Feedback pin for output voltage regulation
  15. COMP: Compensation pin for stability control
  16. VIN: Input voltage pin

Functional Features

  • Wide input voltage range allows for versatile applications
  • High efficiency ensures minimal power loss
  • Low quiescent current reduces standby power consumption
  • Integrated voltage regulator simplifies circuit design

Advantages and Disadvantages

Advantages

  • Wide input voltage range enables compatibility with various power sources
  • High efficiency results in reduced power dissipation and improved energy savings
  • Low quiescent current enhances overall system efficiency
  • Integrated voltage regulator simplifies circuit design and reduces component count

Disadvantages

  • Limited output current may not be suitable for high-power applications
  • Higher switching frequency may introduce additional noise in sensitive systems

Working Principles

ISL78228ARZ-T operates as a step-down (buck) voltage regulator. It converts a higher input voltage to a lower output voltage by controlling the duty cycle of an internal switch. This regulation is achieved through feedback control, where the output voltage is compared to a reference voltage and adjusted accordingly.

Detailed Application Field Plans

ISL78228ARZ-T finds applications in various fields, including: 1. Automotive electronics 2. Industrial automation 3. Telecommunications 4. Consumer electronics 5. Power supplies

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to ISL78228ARZ-T include: 1. LM2596S-ADJ 2. LT1763-3.3 3. TPS5430DDA 4. MAX5033DASA 5. MP2307DN

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

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací ISL78228ARZ-T v technických řešeních

Sure! Here are 10 common questions and answers related to the application of ISL78228ARZ-T in technical solutions:

  1. Q: What is ISL78228ARZ-T? A: ISL78228ARZ-T is a highly integrated dual buck and boost controller designed for automotive applications.

  2. Q: What are the key features of ISL78228ARZ-T? A: Some key features include wide input voltage range, high efficiency, adjustable switching frequency, and comprehensive protection features.

  3. Q: What is the input voltage range supported by ISL78228ARZ-T? A: The input voltage range is typically from 2.8V to 42V, making it suitable for various automotive power supply applications.

  4. Q: Can ISL78228ARZ-T be used for both step-down (buck) and step-up (boost) applications? A: Yes, ISL78228ARZ-T is a dual buck and boost controller, allowing it to be used for both step-down and step-up voltage conversion.

  5. Q: What is the maximum output current supported by ISL78228ARZ-T? A: The maximum output current depends on the external components used, but it can typically support up to 6A per channel.

  6. Q: Does ISL78228ARZ-T have any built-in protection features? A: Yes, ISL78228ARZ-T includes protection features such as overvoltage protection, undervoltage lockout, overcurrent protection, and thermal shutdown.

  7. Q: Can ISL78228ARZ-T operate in a wide temperature range? A: Yes, ISL78228ARZ-T is designed to operate in a wide temperature range, typically from -40°C to +105°C.

  8. Q: What is the switching frequency range of ISL78228ARZ-T? A: The switching frequency can be adjusted from 100kHz to 2.2MHz, allowing flexibility in design and optimization for different applications.

  9. Q: Is ISL78228ARZ-T suitable for automotive powertrain applications? A: Yes, ISL78228ARZ-T is designed to meet the requirements of automotive powertrain systems, making it suitable for such applications.

  10. Q: Are evaluation boards or reference designs available for ISL78228ARZ-T? A: Yes, Intersil provides evaluation boards and reference designs that can help users quickly prototype and implement ISL78228ARZ-T in their applications.

Please note that the answers provided here are general and may vary depending on specific application requirements. It is always recommended to refer to the datasheet and consult with the manufacturer for detailed information.