LTC3872EDDB-1#TRPBF

DC DC Switching Controllers Overview

The LTC3872EDDB-1#TRPBF is a No RSENSE Current Mode Boost DC/DC Controller manufactured by Analog Devices Inc. It operates within an input voltage range of 2.75 V to 9.8 V and supports a maximum output voltage of 60 V. The device features a fixed switching frequency of 550 kHz and draws an operating supply current of 250 uA. Designed for surface mount installation, it utilizes a DFN-8 package and functions within a temperature range of -40°C to +85°C.

DC DC Switching Controllers Feature Summary

• Eliminates the need for external sense resistors through proprietary No RSENSE current mode control architecture
• Provides integrated soft start functionality to manage inrush current during startup sequences
• Includes enable pin support for system power management and shutdown capabilities

DC DC Switching Controllers Applications

• Battery-powered portable equipment requiring efficient step-up conversion
• Industrial systems utilizing single-cell lithium-ion or alkaline battery sources
• General-purpose boost converter designs for embedded applications

DC DC Switching Controllers Procurement Notes

Verify the specific suffix designation carefully, as variations such as EDDB differ from other package options like ETS8. Confirm RoHS compliance status directly with the manufacturer documentation, as some listings indicate non-compliance. Ensure the component matches the required DFN-8 footprint and thermal pad specifications for your PCB layout design.

DC DC Switching Controllers Selection Notes

Select this controller when designing boost converters that require high efficiency without the power loss associated with current sense resistors. It is suitable for applications where the input voltage is lower than the required output voltage, specifically within the 2.75 V to 9.8 V input window. Consider the 550 kHz switching frequency for balancing component size against electromagnetic interference requirements.

DC DC Switching Controllers Part Context

This component belongs to the LTC3872 family of No RSENSE controllers. It shares core architectural similarities with variants like the LTC3872IDDB and LTC3872EDDB, differing primarily in package type and temperature rating. The family is designed to simplify boost regulator design by removing the accuracy limitations and power dissipation of traditional sense resistors.

DC DC Switching Controllers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with alternative No RSENSE boost controllers from Analog Devices, such as the LTC3872ETS8 series, ensuring package and electrical parameter alignment.