LTC3872HDDB#TRMPBF

DC DC Switching Controllers Overview

The LTC3872HDDB#TRMPBF is a constant frequency current mode boost DC/DC controller manufactured by Analog Devices Inc. It operates within an input voltage range of 2.75V to 9.8V and features a fixed switching frequency of 550kHz. The device utilizes a DFN-8 package (2x3mm) with an exposed pad for thermal management. Designed for high efficiency, it supports output currents up to 2A when used in compatible boost converter configurations.

DC DC Switching Controllers Feature Summary

• No RSENSE current mode control architecture eliminates the need for external sense resistors
• Fixed 550kHz switching frequency optimizes component size and efficiency
• Integrated soft-start functionality limits inrush current during startup
• Compact 8-lead DFN package facilitates space-constrained designs

DC DC Switching Controllers Applications

• Single-output boost converter circuits
• Battery-powered portable electronics
• Industrial distributed power systems
• Telecommunications equipment power stages

DC DC Switching Controllers Procurement Notes

Verify the specific suffix HDDB against official Analog Devices documentation to confirm pinout and electrical characteristics. Ensure the TRMPBF designation matches the required tape-and-reel packaging format. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and supply chain integrity before procurement.

DC DC Switching Controllers Selection Notes

Select this component for applications requiring a compact boost solution without external current sensing resistors. The 550kHz frequency allows for smaller passive components compared to lower-frequency alternatives. Verify that the input voltage range of 2.75V to 9.8V aligns with the system power source requirements and that the DFN-8 footprint fits the PCB layout constraints.

DC DC Switching Controllers Part Context

The LTC3872 belongs to Analog Devices' family of non-synchronous boost controllers. It is designed to drive external N-channel MOSFETs for efficient step-up conversion. The device is part of a broader portfolio including variants like the LTC3872IDDB and LTC3872ETS8, which share similar control architectures but differ in package types and temperature ranges.

DC DC Switching Controllers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate alternative models within the LTC3872 series or other Analog Devices boost controllers based on package compatibility and electrical specifications.