Linear Technology/Analog Devices
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LT1376HVIS
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LT1376HVIS

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High Voltage Step-Down Switching Regulator
  • Package: TO-263-7 (HV)
  • Essence: The LT1376HVIS is a high voltage step-down switching regulator designed to efficiently convert higher input voltages into lower output voltages.
  • Packaging/Quantity: The LT1376HVIS is available in a TO-263-7 (HV) package and is typically sold in reels of 250 units.

Specifications

  • Input Voltage Range: 4V to 60V
  • Output Voltage Range: 1.25V to 40V
  • Switching Frequency: 500kHz
  • Maximum Output Current: 3A
  • Efficiency: Up to 92%
  • Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LT1376HVIS has the following pin configuration:

  1. VIN: Input Voltage Pin
  2. GND: Ground Pin
  3. FB: Feedback Pin
  4. VCC: Control Supply Voltage Pin
  5. SYNC: Synchronization Pin
  6. SW: Switch Pin
  7. SS/TR: Soft-Start/Tracking Pin

Functional Features

  • High voltage step-down switching regulator
  • Wide input voltage range for versatile applications
  • Adjustable output voltage
  • High efficiency operation
  • Synchronization capability for multiple regulators
  • Soft-start and tracking functions for controlled startup

Advantages and Disadvantages

Advantages: - Wide input voltage range allows for flexibility in various applications - High efficiency operation helps conserve power - Synchronization capability enables parallel operation of multiple regulators - Soft-start and tracking functions ensure controlled startup

Disadvantages: - Limited maximum output current of 3A may not be suitable for high-power applications - TO-263-7 (HV) package may require additional thermal considerations in certain designs

Working Principles

The LT1376HVIS operates as a step-down switching regulator by using a high-frequency switching transistor to control the energy transfer from the input voltage source to the output load. It employs a feedback mechanism to regulate the output voltage and maintain it at a desired level. The switching frequency of 500kHz allows for efficient power conversion.

Detailed Application Field Plans

The LT1376HVIS is commonly used in various applications, including but not limited to:

  1. Industrial power supplies
  2. Automotive electronics
  3. Telecommunications equipment
  4. Battery-powered systems
  5. Distributed power systems

Detailed and Complete Alternative Models

  1. LT1376HV: Similar to LT1376HVIS, but available in a different package (TO-220-7)
  2. LT1376-5: Lower voltage variant with an output voltage range of 0.8V to 5V
  3. LT1376CN8: Non-HV version with a lower input voltage range of 4V to 40V

These alternative models offer similar functionality and can be considered based on specific design requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LT1376HVIS v technických řešeních

Sure! Here are 10 common questions and answers related to the application of LT1376HVIS in technical solutions:

  1. Q: What is LT1376HVIS? A: LT1376HVIS is a high voltage, high efficiency switching regulator IC designed for use in various power supply applications.

  2. Q: What is the input voltage range of LT1376HVIS? A: The input voltage range of LT1376HVIS is typically between 4V and 60V.

  3. Q: What is the output voltage range of LT1376HVIS? A: The output voltage range of LT1376HVIS can be adjusted from 1.25V to 40V.

  4. Q: What is the maximum output current of LT1376HVIS? A: The maximum output current of LT1376HVIS is typically around 3A.

  5. Q: Can LT1376HVIS operate in a wide temperature range? A: Yes, LT1376HVIS is designed to operate in a wide temperature range, typically from -40°C to 125°C.

  6. Q: Does LT1376HVIS require an external compensation network? A: No, LT1376HVIS has internal compensation, eliminating the need for an external compensation network.

  7. Q: Is LT1376HVIS suitable for battery-powered applications? A: Yes, LT1376HVIS is suitable for battery-powered applications as it has low quiescent current and high efficiency.

  8. Q: Can LT1376HVIS handle short-circuit conditions? A: Yes, LT1376HVIS has built-in protection features like current limiting and thermal shutdown to handle short-circuit conditions.

  9. Q: What type of package does LT1376HVIS come in? A: LT1376HVIS is available in a 16-pin thermally enhanced TSSOP package.

  10. Q: Are there any application notes or reference designs available for LT1376HVIS? A: Yes, Linear Technology (now part of Analog Devices) provides application notes and reference designs for LT1376HVIS on their website.

Please note that the answers provided here are general and may vary depending on specific datasheet specifications and application requirements.