LTC3809EMSE-1#TRPBF

DC DC Switching Controllers Overview

The LTC3809EMSE-1#TRPBF is a synchronous step-down DC/DC controller manufactured by Analog Devices Inc. It operates with an input voltage range of 2.75 V to 9.8 V and supports output voltages from 600 mV to 9.8 V. The device features a fixed switching frequency of 550 kHz and delivers up to 5 A of output current. It utilizes a 10-MSOP package with exposed pad, suitable for surface mount applications across a temperature range of -40°C to +85°C.

DC DC Switching Controllers Feature Summary

• Synchronous buck topology with integrated high-side and low-side gate drivers
• Programmable soft-start and tracking capabilities for power sequencing
• Enable pin functionality for efficient system power management

DC DC Switching Controllers Applications

• Point-of-load regulation in industrial equipment
• Power distribution networks for embedded systems
• Battery-powered portable devices requiring efficient step-down conversion

DC DC Switching Controllers Procurement Notes

Verify the specific suffix TRPBF indicates tape and reel packaging when sourcing. Confirm the MSOP-10 package variant matches your PCB footprint requirements. Ensure the -1 suffix designation aligns with your circuit design specifications before finalizing procurement orders.

DC DC Switching Controllers Selection Notes

Select this component for designs requiring a compact solution with moderate current capacity. The 550 kHz frequency allows for smaller passive components compared to lower frequency alternatives. Consider thermal performance due to the exposed pad requirement for adequate heat dissipation in enclosed environments.

DC DC Switching Controllers Part Context

This part belongs to the LTC3809 family of synchronous controllers. It shares architectural similarities with other members like the LTC3809IDD-1 but differs in package type and operating temperature range. The EMSE-1 variant specifically targets commercial temperature ranges with a small outline package.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include the LTC3809EMSE-1#PBF for tube packaging or the LTC3809IDD-1#TRPBF if DFN packaging is acceptable. Verify pin compatibility and thermal characteristics when cross-referencing with other Buck controllers in the Analog Devices portfolio.