LT8306RS6#WTRMPBF

Overview

The LT8306RS6#WTRMPBF is a micropower isolated flyback controller housed in a TSOT-23-6 package. It operates with an input voltage range of 4.5V to 60V and supports switching frequencies from 10kHz to 400kHz. The device functions as a primary-side feedback regulator, eliminating the need for optocouplers or auxiliary windings. It features boundary mode operation for compact magnetic designs and low ripple burst mode for high efficiency at light loads. The operating temperature range extends from -40°C to +150°C.

Feature Summary

• Primary-side regulation eliminates the requirement for optocouplers or third windings by sampling the isolated output voltage directly from the primary side flyback waveform.
• Boundary mode operation enables small magnetic solutions while maintaining excellent load regulation capabilities.
• Low ripple burst mode maintains high efficiency during light load conditions while minimizing output voltage ripple.
• Integrated internal compensation and soft-start functions reduce the total count of external components required.

Applications

• Isolated power supplies requiring minimal component count
• Applications demanding high efficiency at light loads
• Designs constrained by physical size and magnetic component volume

Procurement Notes

Verify that the specific suffix #WTRMPBF corresponds to the tape and reel packaging format intended for automated assembly processes. Confirm that the TSOT-23-6 footprint matches the target PCB layout dimensions. Ensure the supplier provides valid documentation confirming the Analog Devices Inc. origin and RoHS compliance status prior to final procurement authorization.

Selection Notes

Select this controller when design constraints require isolation without optocouplers or auxiliary transformer windings. It is suitable for applications needing wide input voltage ranges up to 60V. Consider its boundary mode operation for cost-effective magnetic designs. Evaluate the low ripple burst mode if strict output voltage stability is required under varying load conditions.

Part Context

This component belongs to the LT8306 family of micropower isolated flyback controllers manufactured by Analog Devices Inc. It is designed to simplify isolated power supply architectures by integrating primary-side regulation. The RS6 variant specifically denotes the TSOT-23-6 surface mount package configuration.

Replacement Considerations

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