The LT1725IGN#PBF is a high-performance, isolated flyback controller from Linear Technology, designed to simplify the process of creating an isolated power supply without the need for an optocoupler. This innovative device is part of a series of monolithic flyback regulators that significantly enhance the efficiency and reliability of power systems.

Key Features

• No Optocoupler Required: The LT1725IGN#PBF utilizes a novel regulation technique that eliminates the need for an optocoupler, thus improving reliability and reducing system complexity and cost.
• Wide Input Voltage Range: This device operates over a wide input voltage range, making it versatile for various applications, including industrial, automotive, and telecommunications power systems.
• Programmable Soft-Start: The soft-start feature allows for a controlled ramp-up of output voltage, which prevents inrush current at startup, thus protecting the system components.
• Output Overvoltage Protection: To ensure the safety of the load, the LT1725IGN#PBF includes an overvoltage protection circuit that limits the output voltage in case of a regulation fault.

Applications

The LT1725IGN#PBF is suitable for a wide range of isolated power supply applications, including:

• Isolated Telecom Power Supplies
• Industrial Power Supplies
• Medical Equipment
• Automotive Electronics
• Power Over Ethernet (PoE) Systems

Technical Specifications

• Package: 16-Lead SSOP
• Operating Temperature Range: -40°C to 85°C
• Switching Frequency: Up to 500kHz
• Quiescent Current: Low to ensure high efficiency

The LT1725IGN#PBF is a testament to Linear Technology's commitment to providing advanced solutions for complex power management challenges. Its robust design, coupled with its innovative features, makes it an ideal choice for designers looking to create reliable and efficient isolated power supplies.