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LT3688HFE#PBF

LT3688HFE#PBF

Product Overview

Category

LT3688HFE#PBF belongs to the category of integrated circuits (ICs).

Use

The LT3688HFE#PBF is primarily used as a step-down switching regulator.

Characteristics

  • High efficiency
  • Wide input voltage range
  • Adjustable output voltage
  • Low quiescent current
  • Overcurrent protection
  • Thermal shutdown

Package

LT3688HFE#PBF comes in a small and compact 20-pin TSSOP package.

Essence

The essence of LT3688HFE#PBF lies in its ability to efficiently convert a higher input voltage to a lower output voltage, making it suitable for various applications.

Packaging/Quantity

LT3688HFE#PBF is typically packaged in reels and available in quantities of 2500 units per reel.

Specifications

  • Input Voltage Range: 4V to 36V
  • Output Voltage Range: 1.23V to 34V
  • Maximum Output Current: 2A
  • Switching Frequency: 550kHz
  • Quiescent Current: 40µA
  • Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

  1. VIN: Input voltage pin
  2. SW: Switching node connection
  3. GND: Ground reference
  4. FB: Feedback pin for output voltage regulation
  5. SS: Soft-start capacitor connection
  6. SYNC: External synchronization input
  7. VCC: Supply voltage for internal circuitry
  8. PGND: Power ground connection
  9. EN: Enable pin for turning on/off the regulator
  10. BST: Boost capacitor connection
  11. COMP: Compensation pin for stability control
  12. RT: Timing resistor connection for switching frequency adjustment
  13. SS/TR: Soft-start and tracking pin
  14. SS/TR: Soft-start and tracking pin
  15. SS/TR: Soft-start and tracking pin
  16. SS/TR: Soft-start and tracking pin
  17. SS/TR: Soft-start and tracking pin
  18. SS/TR: Soft-start and tracking pin
  19. SS/TR: Soft-start and tracking pin
  20. SS/TR: Soft-start and tracking pin

Functional Features

  • High efficiency conversion
  • Adjustable output voltage
  • Overcurrent protection
  • Thermal shutdown protection
  • Soft-start and tracking capability
  • Synchronization with an external clock signal

Advantages and Disadvantages

Advantages

  • High efficiency results in reduced power dissipation
  • Wide input voltage range allows for versatile applications
  • Adjustable output voltage provides flexibility
  • Overcurrent and thermal shutdown protection ensure device safety
  • Soft-start and tracking features enable smooth startup and operation
  • Synchronization capability enhances system integration

Disadvantages

  • Limited maximum output current of 2A
  • Higher switching frequency may require additional filtering components

Working Principles

LT3688HFE#PBF operates as a step-down switching regulator, utilizing a high-frequency switching transistor to efficiently convert the input voltage to a lower output voltage. The feedback mechanism ensures the output voltage remains stable within the desired range. The device incorporates various protection features such as overcurrent and thermal shutdown to safeguard against potential faults.

Detailed Application Field Plans

The LT3688HFE#PBF is suitable for a wide range of applications including: - Power supplies for industrial equipment - Automotive electronics - Battery-powered devices - Distributed power systems - Telecommunications equipment - LED lighting systems

Detailed and Complete Alternative Models

  1. LT3688HFE#TRPBF
  2. LT3688IFE#PBF
  3. LT3688IFE#TRPBF
  4. LT3688MPFE#PBF
  5. LT3688MPFE#TRPBF

These alternative models offer similar functionality and characteristics to the LT3688HFE#PBF, providing options for different requirements and preferences.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LT3688HFE#PBF v technických řešeních

Sure! Here are 10 common questions and answers related to the application of LT3688HFE#PBF in technical solutions:

  1. Q: What is the LT3688HFE#PBF? A: The LT3688HFE#PBF is a high efficiency, synchronous step-down DC-DC converter designed for use in various technical applications.

  2. Q: What is the input voltage range of the LT3688HFE#PBF? A: The input voltage range of the LT3688HFE#PBF is typically between 4V and 36V.

  3. Q: What is the output voltage range of the LT3688HFE#PBF? A: The output voltage range of the LT3688HFE#PBF can be adjusted from 0.6V to 33V.

  4. Q: What is the maximum output current of the LT3688HFE#PBF? A: The LT3688HFE#PBF can deliver a maximum output current of up to 5A.

  5. Q: Is the LT3688HFE#PBF suitable for battery-powered applications? A: Yes, the LT3688HFE#PBF is suitable for battery-powered applications as it has low quiescent current and supports low dropout operation.

  6. Q: Does the LT3688HFE#PBF have built-in protection features? A: Yes, the LT3688HFE#PBF includes built-in protection features such as overcurrent protection, thermal shutdown, and short-circuit protection.

  7. Q: Can the LT3688HFE#PBF operate in a wide temperature range? A: Yes, the LT3688HFE#PBF is designed to operate in a wide temperature range, typically from -40°C to 125°C.

  8. Q: What type of package does the LT3688HFE#PBF come in? A: The LT3688HFE#PBF is available in a 20-lead TSSOP package.

  9. Q: Can the LT3688HFE#PBF be used in automotive applications? A: Yes, the LT3688HFE#PBF is suitable for automotive applications as it meets the necessary automotive standards and requirements.

  10. Q: Are there any evaluation boards or reference designs available for the LT3688HFE#PBF? A: Yes, Linear Technology (now part of Analog Devices) provides evaluation boards and reference designs for the LT3688HFE#PBF, which can help in the development and testing of technical solutions.

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 and support.