LTC7862HUFD#PBF

Product Overview

• Category: Voltage Regulator
• Use: The LTC7862HUFD#PBF is a high-performance synchronous step-down DC/DC controller designed for use in various power supply applications.
• Characteristics: It features high efficiency, low quiescent current, and a wide input voltage range. The package type is QFN, and it comes in a 38-lead (6mm x 6mm) plastic QFN package.
• Packaging/Quantity: The LTC7862HUFD#PBF is available in tape-and-reel packaging with a quantity of 250 units per reel.

Specifications

• Input Voltage Range: 4V to 140V
• Output Voltage Range: 0.8V to 60V
• Quiescent Current: 50µA
• Operating Temperature Range: -40°C to 125°C
• Switching Frequency Range: 100kHz to 900kHz

Detailed Pin Configuration

The LTC7862HUFD#PBF has a total of 38 pins, including VIN, VOUT, FB, COMP, SS/TRK, and more. A detailed pin configuration diagram can be found in the product datasheet.

Functional Features

• Synchronous Rectification: Provides high efficiency by reducing switching losses.
• Wide Input Voltage Range: Allows for flexibility in various power supply applications.
• Low Quiescent Current: Enables efficient operation even at light loads.

Advantages and Disadvantages

• Advantages:
  • High efficiency
  • Wide input voltage range
  • Low quiescent current
• Disadvantages:
  • Higher component count compared to non-synchronous regulators
  • Requires careful PCB layout due to high-frequency operation

Working Principles

The LTC7862HUFD#PBF operates on the principle of synchronous rectification, where it uses MOSFETs to replace diodes in the rectification process, reducing power loss and improving efficiency. It regulates the output voltage based on feedback from the FB pin, providing a stable output voltage regardless of input variations.

Detailed Application Field Plans

The LTC7862HUFD#PBF is suitable for a wide range of applications, including industrial power supplies, automotive systems, telecommunications equipment, and renewable energy systems. Its wide input voltage range and high efficiency make it ideal for demanding environments where reliable power conversion is essential.

Detailed and Complete Alternative Models

• Alternative Model 1: LT8610ABEME#PBF
  • Category: Voltage Regulator
  • Use: Step-down DC/DC converter
  • Characteristics: High efficiency, compact package
• Alternative Model 2: LT8645SIFE#PBF
  • Category: Voltage Regulator
  • Use: Synchronous step-down DC/DC converter
  • Characteristics: Wide input voltage range, low quiescent current

In conclusion, the LTC7862HUFD#PBF is a versatile and high-performance voltage regulator suitable for a wide range of power supply applications. Its advanced features and specifications make it an excellent choice for demanding environments where efficiency and reliability are paramount.

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