LTC3803IS6-5#TRPBF

DC DC Switching Controllers Overview

The LTC3803IS6-5 is a constant frequency current mode flyback DC/DC controller optimized for driving N-channel MOSFETs in high input voltage applications. It operates from inputs as low as 5V, with a maximum input voltage of 75V and a switching frequency of 200kHz. The device provides one positive isolated output and features current limit and enable control characteristics. It is housed in a TSOT-23-6 package and supports a duty cycle up to 80%. The operating junction temperature range spans from -40°C to +125°C.

DC DC Switching Controllers Feature Summary

• Constant frequency current mode control architecture
• Optimized for driving N-channel MOSFETs in high input voltage scenarios
• Integrated current limit and enable functionality

DC DC Switching Controllers Applications

• Dual output wide input range converters
• Synchronous flyback converters
• Isolated housekeeping telecom converters

DC DC Switching Controllers Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm pinout and electrical specifications. Ensure the component matches the required thermal performance for the intended operating environment. Cross-reference the datasheet revision date with manufacturing records to guarantee compatibility with design requirements.

DC DC Switching Controllers Selection Notes

Select this controller for designs requiring high input voltage tolerance and compact form factors. Consider the 200kHz switching frequency when determining transformer size and EMI filtering requirements. Evaluate the TSOT-23-6 package constraints for thermal management and PCB layout space availability in dense assemblies.

DC DC Switching Controllers Part Context

This component belongs to the LTC3803 series of flyback controllers from Analog Devices. It is designed for efficient power conversion in applications demanding isolation and high input voltage ranges. The series offers various packages and options to suit different power levels and thermal constraints.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include other parts within the LTC3803 family, such as the LTC3803ES6-5 or LTC3803HS6-5, provided they match the specific voltage and thermal grades required.