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LTC3851EMSE-1#TRPBF
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LTC3851EMSE-1#TRPBF

Product Overview

Category

LTC3851EMSE-1#TRPBF belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in power management applications.

Characteristics

  • High efficiency
  • Wide input voltage range
  • Adjustable output voltage
  • Current mode control
  • Synchronous rectification
  • Overcurrent protection
  • Thermal shutdown protection

Package

LTC3851EMSE-1#TRPBF is available in a small MSOP-16 package.

Essence

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

Packaging/Quantity

LTC3851EMSE-1#TRPBF is typically packaged in reels, with 2500 units per reel.

Specifications

  • Input Voltage Range: 4.5V to 38V
  • Output Voltage Range: 0.8V to VIN
  • Maximum Continuous Output Current: 10A
  • Switching Frequency Range: 100kHz to 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. SS: Soft-start pin for controlling startup time
  5. SYNC: Synchronization pin for external clock synchronization
  6. VCC: Supply voltage pin for internal circuitry
  7. PGND: Power ground pin
  8. SW: Switching node pin for connecting the inductor and output capacitor
  9. BOOT: Bootstrap pin for driving the high-side MOSFET
  10. COMP: Compensation pin for loop stability
  11. SS/TRK: Soft-start/tracking pin for controlling output voltage ramp-up time
  12. RT: Timing resistor pin for setting the switching frequency
  13. SS/TRK: Soft-start/tracking pin for controlling output voltage ramp-up time
  14. VOUT: Output voltage pin
  15. PGND: Power ground pin
  16. VIN: Input voltage pin

Functional Features

  • High efficiency power conversion
  • Wide input voltage range for versatile applications
  • Adjustable output voltage to meet specific requirements
  • Current mode control for improved stability and transient response
  • Synchronous rectification for reduced power losses
  • Overcurrent protection to safeguard against excessive current
  • Thermal shutdown protection to prevent overheating

Advantages and Disadvantages

Advantages

  • High efficiency leads to energy savings
  • Wide input voltage range allows for flexibility in different power sources
  • Adjustable output voltage accommodates various load requirements
  • Current mode control enhances stability and response to load changes
  • Synchronous rectification reduces power losses, improving overall efficiency
  • Overcurrent protection ensures safe operation
  • Thermal shutdown protection prevents damage due to excessive heat

Disadvantages

  • Limited maximum continuous output current of 10A
  • Requires careful consideration of thermal management in high-power applications

Working Principles

LTC3851EMSE-1#TRPBF operates based on a current mode control architecture. It regulates the output voltage by adjusting the duty cycle of the internal power switches. The feedback pin (FB) monitors the output voltage and provides the necessary information for the control loop. By comparing the feedback voltage with a reference voltage, the controller adjusts the duty cycle to maintain the desired output voltage.

The synchronous rectification feature improves efficiency by minimizing power losses during the switching process. Overcurrent protection ensures that the output current does not exceed the specified limit, protecting both the circuit and the load. Thermal shutdown protection activates when the temperature exceeds a certain threshold, preventing damage to the IC.

Detailed Application Field Plans

LTC3851EMSE-1#TRPBF finds applications in various fields, including but not limited to: - Power supplies for industrial equipment - Automotive electronics - Telecommunications systems - Renewable energy systems - Battery charging circuits - LED lighting systems

Detailed and Complete Alternative Models

  1. LTC3851AEMSE-1#TRPBF
  2. LTC3851BEMSE-1#TRPBF
  3. LTC3851CEMSE-1#TRPBF
  4. LTC3851DEMSE-1#TRPBF
  5. LTC3851EEMSE-1#TRPBF

These alternative models offer similar functionality and characteristics, providing options for different design requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LTC3851EMSE-1#TRPBF v technických řešeních

  1. What is the input voltage range of LTC3851EMSE-1#TRPBF?
    - The input voltage range of LTC3851EMSE-1#TRPBF is 4.5V to 38V.

  2. What is the maximum output current of LTC3851EMSE-1#TRPBF?
    - The maximum output current of LTC3851EMSE-1#TRPBF is 12A.

  3. Can LTC3851EMSE-1#TRPBF be used in automotive applications?
    - Yes, LTC3851EMSE-1#TRPBF is suitable for automotive applications.

  4. What is the switching frequency range of LTC3851EMSE-1#TRPBF?
    - The switching frequency range of LTC3851EMSE-1#TRPBF is 200kHz to 3MHz.

  5. Is LTC3851EMSE-1#TRPBF suitable for point-of-load regulation?
    - Yes, LTC3851EMSE-1#TRPBF is designed for point-of-load regulation.

  6. Does LTC3851EMSE-1#TRPBF have overcurrent protection?
    - Yes, LTC3851EMSE-1#TRPBF features overcurrent protection.

  7. What is the operating temperature range of LTC3851EMSE-1#TRPBF?
    - The operating temperature range of LTC3851EMSE-1#TRPBF is -40°C to 125°C.

  8. Can LTC3851EMSE-1#TRPBF be used in industrial control systems?
    - Yes, LTC3851EMSE-1#TRPBF is suitable for industrial control systems.

  9. What type of package does LTC3851EMSE-1#TRPBF come in?
    - LTC3851EMSE-1#TRPBF is available in an MSOP-16E package.

  10. Is LTC3851EMSE-1#TRPBF RoHS compliant?
    - Yes, LTC3851EMSE-1#TRPBF is RoHS compliant.