LTC3872ITS8#TRPBF

DC DC Switching Controllers Overview

The LTC3872ITS8#TRPBF is a constant frequency current mode boost DC/DC controller manufactured by Analog Devices. It operates within an input voltage range of 2.75 V to 9.8 V and supports a switching frequency of 550 kHz. The device delivers a maximum output voltage of 60 V with a single output configuration. It features a low operating supply current of 250 uA and maintains a load regulation of 0.05 %. The component is housed in a TSOT-23-8 package and functions reliably across a temperature range from -40°C to +125°C.

DC DC Switching Controllers Feature Summary

• Eliminates the need for external sense resistors through proprietary current mode control architecture
• Provides precise load regulation capabilities for stable power delivery under varying conditions
• Integrates soft-start functionality to manage inrush currents during startup sequences

DC DC Switching Controllers Applications

• Battery-powered portable electronic devices requiring efficient voltage step-up
• Industrial systems utilizing single-cell lithium-ion or alkaline battery sources
• Embedded applications needing compact power management solutions in small form factors

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #TRPBF confirms the tape and reel packaging format required for automated assembly processes. Ensure compatibility with the target PCB footprint for the TSOT-23-8 package. Confirm that the operating temperature range meets the environmental requirements of the final application. Cross-reference the datasheet revision to ensure all electrical characteristics align with design specifications.

DC DC Switching Controllers Selection Notes

Select this component when a resistorless boost topology is required to minimize bill of materials and board space. Consider the 550 kHz switching frequency for balancing efficiency and passive component size. Evaluate the 2.75 V minimum input voltage against the lowest expected battery discharge level. Verify that the 60 V output capability exceeds the maximum required system voltage headroom.

DC DC Switching Controllers Part Context

This part belongs to the LTC3872 family of no RSENSE current mode boost controllers. It shares architectural similarities with other members like the LTC3872EDDB but differs in package type and thermal performance. The ITS8 variant specifically utilizes the TSOT-23-8 outline, distinguishing it from DFN packages used in other series iterations.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include other variants within the LTC3872 family such as LTC3872ETS8#TRPBF, which offers identical electrical performance in a different package. Alternative packages like LTC3872IDDB provide similar functionality with enhanced thermal dissipation characteristics for higher power applications.