Linear Technology/Analog Devices
Bild kan vara representation.
Se specifikationer för produktinformation.
LTC3829IUHF#PBF
Visa detalj Datablad

LTC3829IUHF#PBF

Product Overview

Category

The LTC3829IUHF#PBF belongs to the category of high-efficiency synchronous step-down DC/DC controllers.

Use

It is commonly used in power management applications, particularly in systems requiring high efficiency and low heat dissipation.

Characteristics

  • High efficiency
  • Low heat dissipation
  • Synchronous operation
  • Wide input voltage range
  • Adjustable frequency and phase
  • Precision enable input
  • Power good output
  • Soft-start capability

Package

The LTC3829IUHF#PBF comes in a 38-lead QFN package.

Essence

The essence of LTC3829IUHF#PBF lies in its ability to efficiently regulate and control the voltage in various power management applications.

Packaging/Quantity

It is typically available in reels with a quantity of 250 units per reel.

Specifications

  • Input Voltage Range: 4.5V to 60V
  • Output Voltage Range: 0.6V to 24V
  • Switching Frequency Range: 200kHz to 3MHz
  • Operating Temperature Range: -40°C to 125°C
  • Maximum Duty Cycle: 100%

Detailed Pin Configuration

The LTC3829IUHF#PBF features a detailed pin configuration as follows: 1. VIN 2. SS/TR/UVLO 3. SYNC/MODE 4. PGND 5. AGND 6. FB 7. VCC 8. COMP 9. RT/CLKOUT 10. SW 11. SW 12. SW 13. SW 14. SW 15. SW 16. SW 17. SW 18. SW 19. SW 20. SW 21. SW 22. SW 23. SW 24. SW 25. SW 26. SW 27. SW 28. SW 29. SW 30. SW 31. SW 32. SW 33. SW 34. SW 35. SW 36. SW 37. SW 38. SW

Functional Features

  • Synchronous rectification
  • Adjustable frequency and phase
  • Precision enable input
  • Power good output
  • Soft-start capability
  • Overvoltage protection
  • Undervoltage lockout
  • Thermal shutdown

Advantages and Disadvantages

Advantages

  • High efficiency
  • Wide input voltage range
  • Synchronous operation reduces power loss
  • Flexible frequency and phase adjustment

Disadvantages

  • Higher cost compared to non-synchronous controllers
  • More complex design considerations

Working Principles

The LTC3829IUHF#PBF operates by regulating the input voltage to a desired output voltage with high efficiency through synchronous rectification and adjustable frequency and phase control. It utilizes precision enable input and power good output to ensure reliable performance.

Detailed Application Field Plans

The LTC3829IUHF#PBF is well-suited for a wide range of applications including: - Industrial power supplies - Automotive power systems - Telecommunications equipment - Distributed power systems - Battery-powered devices

Detailed and Complete Alternative Models

Some alternative models to LTC3829IUHF#PBF include: - LTC3815 - LTC3833 - LTC3862 - LTC3875

In conclusion, the LTC3829IUHF#PBF is a high-efficiency synchronous step-down DC/DC controller with a wide range of applications and functional features, making it an ideal choice for power management solutions that require high efficiency and precise voltage regulation.

[Word Count: 498]

Lista 10 Vanliga frågor och svar relaterade till tillämpningen av LTC3829IUHF#PBF i tekniska lösningar

  1. What is the LTC3829IUHF#PBF?

    • The LTC3829IUHF#PBF is a high-performance synchronous step-down DC/DC controller designed for use in various technical solutions.

  2. What is the input voltage range of LTC3829IUHF#PBF?

    • The input voltage range of LTC3829IUHF#PBF is 4.5V to 60V, making it suitable for a wide range of applications.

  3. What is the output current capability of LTC3829IUHF#PBF?

    • The LTC3829IUHF#PBF can deliver up to 20A of continuous output current, making it suitable for demanding power requirements.

  4. What are the key features of LTC3829IUHF#PBF?

    • The key features of LTC3829IUHF#PBF include high efficiency, wide input voltage range, precision enable input, and programmable soft-start.

  5. What are the typical applications of LTC3829IUHF#PBF?

    • Typical applications of LTC3829IUHF#PBF include industrial, automotive, telecom, and networking systems, as well as general-purpose point-of-load regulation.

  6. What is the switching frequency range of LTC3829IUHF#PBF?

    • The LTC3829IUHF#PBF offers a selectable fixed frequency operation from 200kHz to 2.2MHz, allowing for optimization of efficiency and external component size.

  7. Does LTC3829IUHF#PBF have built-in protection features?

    • Yes, LTC3829IUHF#PBF includes a comprehensive set of protection features such as overcurrent protection, overvoltage protection, and thermal shutdown.

  8. Can LTC3829IUHF#PBF be used in automotive applications?

    • Yes, LTC3829IUHF#PBF is suitable for automotive applications due to its wide input voltage range and robust design.

  9. What is the operating temperature range of LTC3829IUHF#PBF?

    • The LTC3829IUHF#PBF is designed to operate over a temperature range of -40°C to 125°C, ensuring reliable performance in harsh environments.

  10. Is there a reference design available for LTC3829IUHF#PBF?

    • Yes, Linear Technology (now part of Analog Devices) provides reference designs and application notes to assist with the implementation of LTC3829IUHF#PBF in technical solutions.