LTC3805IDD#PBF

DC DC Switching Controllers Overview

The LTC3805IDD#PBF is a single-output flyback or step-up DC/DC controller designed for automotive applications. It operates within an input voltage range of 8.8V to 75V and supports a maximum switching frequency of 700kHz. The device provides an adjustable output voltage from 0.8V minimum, with a typical quiescent current of 0.36mA. It is housed in a 10-pin DFN EP package and functions across an industrial temperature range of -40°C to 125°C.

DC DC Switching Controllers Feature Summary

• Supports flyback and boost converter topologies
• Capable of high input voltages up to 75V
• Includes programmable overcurrent sensing protection
• Features automatic restart via soft-start capacitor

DC DC Switching Controllers Applications

• Automotive power systems
• Flyback converter designs
• Boost converter circuits

DC DC Switching Controllers Procurement Notes

Verify the specific suffix and tape-and-reel versus tube packaging status directly with Analog Devices or authorized distributors, as availability varies. Confirm RoHS compliance and lead times for the exact lot code required for your production schedule before finalizing orders.

DC DC Switching Controllers Selection Notes

Select this component when designing isolated or non-isolated converters requiring high input voltage tolerance. Ensure external components support the 700kHz switching capability and that the thermal performance of the DFN EP package meets the system's heat dissipation requirements under maximum load conditions.

DC DC Switching Controllers Part Context

This part belongs to the LTC3805 family of adjustable frequency current mode controllers. It shares core architecture with other variants like the EMSE package version but differs in thermal handling and automotive qualification. The IDD designation indicates the specific temperature grade and package style suitable for compact industrial layouts.

DC DC Switching Controllers Replacement Considerations

LTC3805EMSE-5#PBF offers similar functionality in an MSOP package. Verify pin compatibility and thermal characteristics before substitution.