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LTC3859ALIUHF#TRPBF
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LTC3859ALIUHF#TRPBF

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management

Characteristics: - High Efficiency - Wide Input Voltage Range - Synchronous Buck Converter - Adjustable Output Voltage - Current Mode Control - Programmable Soft-Start - Overvoltage Protection - Undervoltage Lockout - Thermal Shutdown - Small Footprint

Package: 28-Lead QFN (Quad Flat No-Lead)

Essence: The LTC3859ALIUHF#TRPBF is a high-performance synchronous buck converter IC designed for power management applications. It offers high efficiency and a wide input voltage range, making it suitable for various power supply designs.

Packaging/Quantity: The LTC3859ALIUHF#TRPBF is available in a 28-Lead QFN package. The quantity per reel is typically 2500 units.

Specifications

  • Input Voltage Range: 4.5V to 38V
  • Output Voltage Range: 0.6V to VIN
  • Maximum Output Current: 20A
  • Switching Frequency: Up to 2MHz
  • Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LTC3859ALIUHF#TRPBF has the following pin configuration:

  1. VCC
  2. GND
  3. SW
  4. FB
  5. SS/TR/UVLO
  6. SYNC/SS/TR/UVLO
  7. PGND
  8. PGND
  9. PGND
  10. PGND
  11. PGND
  12. PGND
  13. PGND
  14. PGND
  15. PGND
  16. PGND
  17. PGND
  18. PGND
  19. PGND
  20. PGND
  21. PGND
  22. PGND
  23. PGND
  24. PGND
  25. PGND
  26. PGND
  27. PGND
  28. PGND

Functional Features

  • High Efficiency Conversion
  • Adjustable Output Voltage
  • Current Mode Control for Stability
  • Programmable Soft-Start for Controlled Startup
  • Overvoltage Protection to Safeguard the Circuit
  • Undervoltage Lockout for Reliable Operation
  • Thermal Shutdown to Prevent Overheating

Advantages and Disadvantages

Advantages: - High efficiency leads to energy savings. - Wide input voltage range allows for versatile applications. - Synchronous buck converter design improves power conversion efficiency. - Adjustable output voltage provides flexibility in power supply design. - Current mode control enhances stability.

Disadvantages: - Limited maximum output current of 20A may not be suitable for high-power applications. - The small package size may require careful PCB layout considerations.

Working Principles

The LTC3859ALIUHF#TRPBF operates as a synchronous buck converter, converting a higher input voltage to a lower output voltage efficiently. It utilizes current mode control to regulate the output voltage and maintain stability. The IC incorporates various protection features such as overvoltage protection, undervoltage lockout, and thermal shutdown to ensure safe operation.

Detailed Application Field Plans

The LTC3859ALIUHF#TRPBF is commonly used in the following application fields:

  1. Industrial Power Supplies
  2. Telecom Infrastructure
  3. Automotive Electronics
  4. Data Storage Systems
  5. Distributed Power Architectures
  6. Point-of-Load Converters
  7. Battery-Powered Systems

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the LTC3859ALIUHF#TRPBF are:

  1. LT8610ABEMSE#PBF
  2. LT8610AEMSE#PBF
  3. LT8610BEMSE#PBF
  4. LT8610EMSE#PBF
  5. LT8610EUDD#PBF

These models offer similar functionality and can be used as alternatives depending on specific requirements.

Note: The content provided above is a sample structure for an encyclopedia entry and may not reflect the actual specifications or details of the LTC3859ALIUHF#TRPBF IC.

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LTC3859ALIUHF#TRPBF v technických řešeních

Sure! Here are 10 common questions and answers related to the application of LTC3859ALIUHF#TRPBF in technical solutions:

  1. Q: What is LTC3859ALIUHF#TRPBF? A: LTC3859ALIUHF#TRPBF is a specific model number for a high-performance synchronous step-down DC/DC controller IC.

  2. Q: What are the key features of LTC3859ALIUHF#TRPBF? A: Some key features include wide input voltage range, high efficiency, adjustable frequency, and integrated protection features.

  3. Q: What is the typical application of LTC3859ALIUHF#TRPBF? A: LTC3859ALIUHF#TRPBF is commonly used in various power supply applications, such as telecom, industrial, and automotive systems.

  4. Q: What is the maximum input voltage supported by LTC3859ALIUHF#TRPBF? A: The maximum input voltage supported by LTC3859ALIUHF#TRPBF is typically around 60V.

  5. Q: Can LTC3859ALIUHF#TRPBF operate with both high-side and low-side MOSFETs? A: Yes, LTC3859ALIUHF#TRPBF can work with both high-side and low-side MOSFETs, providing flexibility in circuit design.

  6. Q: Does LTC3859ALIUHF#TRPBF have built-in protection features? A: Yes, LTC3859ALIUHF#TRPBF includes various protection features like overvoltage protection, overcurrent protection, and thermal shutdown.

  7. Q: What is the maximum output current that LTC3859ALIUHF#TRPBF can handle? A: The maximum output current capability of LTC3859ALIUHF#TRPBF depends on the specific application and external components used.

  8. Q: Can LTC3859ALIUHF#TRPBF operate in a synchronous rectification mode? A: Yes, LTC3859ALIUHF#TRPBF supports synchronous rectification, which improves efficiency and reduces power losses.

  9. Q: Is there any adjustable frequency feature in LTC3859ALIUHF#TRPBF? A: Yes, LTC3859ALIUHF#TRPBF allows users to adjust the switching frequency according to their specific requirements.

  10. Q: Are there any evaluation boards or reference designs available for LTC3859ALIUHF#TRPBF? A: Yes, Linear Technology (now part of Analog Devices) provides evaluation boards and reference designs to help users get started with LTC3859ALIUHF#TRPBF implementation.

Please note that the answers provided here are general and may vary depending on the specific application and design considerations. It is always recommended to refer to the datasheet and application notes for detailed information.