LTC3809EDD#TRPBF

DC DC Switching Controllers Overview

The LTC3809EDD#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 output voltages from 600mV to 9.8V. The device features a fixed switching frequency of 550kHz and utilizes a 10-DFN (3x3) package. It includes integrated control features such as enable, soft-start, and tracking capabilities, designed for efficient power management in low-voltage applications.

DC DC Switching Controllers Feature Summary

• Synchronous buck topology for high efficiency
• Integrated enable, soft-start, and tracking functions
• Fixed 550kHz switching frequency operation
• Low input voltage capability down to 2.75V

DC DC Switching Controllers Applications

• Point-of-load regulation for embedded systems
• Battery-powered portable devices
• Industrial control power supplies
• Telecommunications equipment

DC DC Switching Controllers Procurement Notes

Verify the exact suffix against official Analog Devices documentation to confirm package type and temperature grade. Ensure compatibility with existing board layouts regarding the 10-DFN footprint. Cross-reference datasheet revisions for any pinout or electrical parameter updates before finalizing procurement orders.

DC DC Switching Controllers Selection Notes

Select this component for designs requiring a compact solution with low input voltage support. The fixed frequency simplifies filter design compared to adjustable variants. Verify that the required output current does not exceed the external MOSFET capabilities, as the IC acts only as a controller. Consider thermal performance within the small DFN package for high-current applications.

DC DC Switching Controllers Part Context

This part belongs to the LTC3809 family of synchronous step-down controllers. It is distinguished by its specific suffix indicating the 10-DFN package and commercial/industrial temperature range variations. It serves as a core power management element in systems needing regulated low-voltage rails from slightly higher input sources.

DC DC Switching Controllers Replacement Considerations

Check for direct replacements like the LTC3809IDD#TRPBF if industrial temperature ratings are required. Verify pin-to-pin compatibility with other single-phase synchronous buck controllers from Analog Devices or competitors when redesigning.