LT3837EFE#PBF

Overview

The LT3837EFE#PBF is an isolated switching regulator controller designed for medium power flyback topologies, typically supporting applications from 10W to 60W. It operates with a supply voltage range of 4.5V to 20V and features a fixed switching frequency of 100kHz. The device supports a maximum duty cycle of 88% and provides one output phase. It is housed in a TSSOP-16 package and functions as a synchronous flyback controller without requiring an optocoupler.

Feature Summary

• Designed for isolated synchronous flyback converter topologies
• Eliminates the need for an optocoupler for feedback control
• Supports medium power applications up to 60W

Applications

• Isolated DC-DC conversion systems
• Medium power flyback power supplies
• Industrial power management modules

Procurement Notes

Verify the exact part number suffix against official Analog Devices documentation to confirm pinout and thermal characteristics. Ensure the procurement channel provides valid traceability for the #PBF lead-free designation. Confirm availability status as distribution channels may report limited stock or restricted supply conditions for this specific component variant.

Selection Notes

Select this controller for designs requiring galvanic isolation in flyback architectures without optocoupler complexity. It is suitable for applications needing a 100kHz switching frequency and a wide input supply range. Consider the TSSOP-16 package constraints for thermal management in high-power density implementations.

Part Context

This component belongs to the LT3837 family of isolated switching regulators. It is manufactured by Analog Devices Inc., formerly Linear Technology. The device integrates current-mode control logic optimized for synchronous rectification in flyback converters, distinguishing it from non-isolated buck or boost controllers.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.