LTC3809IDD-1#TRPBF

DC DC Switching Controllers Overview

The LTC3809IDD-1#TRPBF is a synchronous step-down DC/DC controller manufactured by Analog Devices Inc. It operates with an input voltage range of 2.75V to 9.8V and supports a fixed switching frequency of 550kHz. The device features a 10-WFDFN package with exposed pad, measuring 3x3mm. It provides a single positive output configured for buck topology. Key electrical specifications include a maximum duty cycle of 100% and an operating temperature range from -40°C to 85°C.

DC DC Switching Controllers Feature Summary

• Synchronous rectification architecture for improved efficiency
• Integrated soft-start and tracking capabilities
• Enable pin functionality for power management control

DC DC Switching Controllers Applications

• Point-of-load regulation in industrial systems
• Power supply stages for embedded computing
• Battery-powered equipment requiring low input voltage conversion

DC DC Switching Controllers Procurement Notes

Verify the specific suffix IDD-1 against the official Analog Devices datasheet to confirm pinout and functional compatibility. Ensure the 10-DFN(3x3) package dimensions match your PCB footprint requirements. Confirm RoHS3 compliance status if required by your manufacturing standards. Cross-reference the manufacturer part number with authorized distributors to ensure authenticity.

DC DC Switching Controllers Selection Notes

Select this component when a compact solution is needed for low-voltage buck conversion applications. The 550kHz frequency allows for smaller external passive components compared to lower-frequency alternatives. Consider the thermal performance of the DFN package for your specific power dissipation needs. Verify that the input voltage range aligns with your system's power source characteristics.

DC DC Switching Controllers Part Context

This part belongs to the LTC3809 family of synchronous buck controllers designed for space-constrained applications. The IDD-1 variant specifies the 10-lead DFN package configuration. It is distinct from other packages like MSOP or leaded options within the same series. The #TRPBF suffix indicates tape and reel packaging with lead-free finish.

DC DC Switching Controllers Replacement Considerations

Consult the official Analog Devices product selector guide for verified cross-references. Alternative packages such as LTC3809IMSE-1#PBF offer the same functionality in MSOP-10. Ensure any substitute maintains the 10-DFN form factor if board space is critical.