LTC1698IS#TRPBF

Power Supply Controllers, Monitors Overview

The LTC1698IS#TRPBF is a precision secondary-side forward converter controller manufactured by Analog Devices Inc. It is designed to synchronously drive external N-channel MOSFETs, functioning as a synchronous rectifier controller in power supply applications. The device operates within an industrial temperature range of -40°C to +85°C and is housed in a 16-lead SOIC package. Key electrical characteristics include an operating supply current of 1.8 mA and support for single-output configurations. This component is part of the LTC1698 series, optimized for high-efficiency DC/DC conversion systems requiring precise secondary-side control.

Power Supply Controllers, Monitors Feature Summary

• Synchronously drives external N-channel MOSFETs for efficient secondary-side rectification
• Precision control architecture designed for forward converter topologies
• Integrated protection features to ensure reliable operation under varying load conditions

Power Supply Controllers, Monitors Applications

• Secondary-side control in forward converter power supplies
• Synchronous rectification in isolated DC/DC converters
• High-efficiency power management modules

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix TRPBF indicates tape-and-reel packaging when sourcing. Confirm the 16-SOIC package dimensions match your PCB footprint requirements. Ensure compatibility with external N-channel MOSFET gate drive specifications. Check for RoHS3 compliance documentation if required by your manufacturing standards. Validate that the operating temperature range meets your system's environmental constraints.

Power Supply Controllers, Monitors Selection Notes

Select this component when designing forward converters requiring synchronous rectification to minimize conduction losses. It is suitable for applications where precise timing and low standby current are critical. Consider the 1.8 mA supply current impact on overall system efficiency. Ensure the external MOSFETs selected can handle the gate drive capabilities provided by the controller. Evaluate thermal performance within the 16-SOIC package for your specific power dissipation needs.

Power Supply Controllers, Monitors Part Context

The LTC1698 belongs to Analog Devices' family of secondary-side controllers, specifically targeting forward converter architectures. It replaces traditional diode rectifiers with active MOSFET control to improve efficiency. The IS5 variant denotes the industrial temperature grade and SOIC package style. This component complements primary-side controllers by managing the output stage dynamics directly.

Power Supply Controllers, Monitors Replacement Considerations

Direct substitutes may include other secondary-side forward converter controllers from Analog Devices or competitors offering similar synchronous rectification capabilities. Verify pinout compatibility and gate drive strength before substitution. Ensure replacement parts meet the same voltage and current ratings for the external MOSFETs.