LTC3872HDDB-1#TRPBF

DC DC Switching Controllers Overview

The LTC3872HDDB-1#TRPBF 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 utilizes a DFN-8 package for surface mount installation. The device features a fixed switching frequency of 550kHz and draws an operating supply current of 0.25mA. It provides one output with control characteristics including current limiting, enable functionality, and soft start capabilities.

DC DC Switching Controllers Feature Summary

• Implements constant frequency current mode control architecture
• Eliminates the need for external sense resistors
• Integrates programmable soft start functionality
• Supports operation without synchronous rectification

DC DC Switching Controllers Applications

• Single-output boost converter designs
• Non-isolated DC/DC power conversion systems
• Industrial power supply modules
• Distributed power architectures

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging configuration. Confirm the HDDB variant matches the required DFN-8 footprint dimensions. Ensure compatibility with the intended input voltage range of 2.75V to 9.8V. Validate RoHS compliance status against project requirements before finalizing procurement orders.

DC DC Switching Controllers Selection Notes

Select this component for applications requiring a compact boost topology without synchronous rectification overhead. The absence of a sense resistor simplifies board layout and reduces component count. Consider the 550kHz fixed frequency when designing magnetic components. Verify thermal performance within the specified operating temperature range during initial design phases.

DC DC Switching Controllers Part Context

This part belongs to the LTC3872 family of non-synchronous boost controllers. It shares architectural similarities with other members like the LTC3872ETS8 but differs in package type. The family focuses on simplified design through internal current sensing mechanisms. Related evaluation boards such as DC989B-B demonstrate typical application circuits for this controller series.

DC DC Switching Controllers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.