LTC3863IMSE#PBF

DC DC Switching Controllers Overview

The LTC3863IMSE#PBF is a DC/DC switching controller manufactured by Analog Devices Inc., designed for inverting topologies. It converts a positive input voltage to a negative output using a single inductor. The device operates with an input supply range of 3.5V to 60V and supports switching frequencies from 50kHz to 850kHz. It features current mode control with cycle-by-cycle current limiting, soft start, and enable functions. The component is housed in a 12-lead MSOP package with an exposed pad (MSOP-EP) for thermal dissipation.

DC DC Switching Controllers Feature Summary

• Inverting topology capability converting positive inputs to negative outputs
• Integrated cycle-by-cycle current limiting and soft start functionality
• Wide operating input voltage range supporting various power sources
• Programmable switching frequency for optimized efficiency and size

DC DC Switching Controllers Applications

• Industrial control systems requiring negative bias supplies
• Telecommunications equipment power management
• Portable instrumentation with limited board space
• Automotive electronics applications

DC DC Switching Controllers Procurement Notes

Verify the specific suffix 'IMSE' indicates the industrial temperature grade (-40°C to 125°C TJ) and the '#PBF' denotes lead-free packaging compliant with RoHS standards. Confirm the package type matches the 12-MSOP-EP footprint requirements for your PCB layout. Ensure that the selected distributor provides traceability documentation consistent with Analog Devices Inc. manufacturing records.

DC DC Switching Controllers Selection Notes

Select this controller when an inverting buck converter architecture is required rather than a standard step-down configuration. Consider the 60V maximum input rating against your system's peak voltage conditions. Evaluate the need for external MOSFETs as this is a controller without integrated switches. Compare the thermal performance of the MSOP-EP package against alternative packages if high power dissipation is expected in confined spaces.

DC DC Switching Controllers Part Context

This part belongs to the LTC3863 family of inverting DC/DC controllers. It shares functional similarities with other members like the LTC3863EMSE#PBF but differs in temperature grading and packaging options. The family is designed for applications needing efficient generation of negative voltages from positive rails, commonly found in mixed-signal systems requiring dual polarity supplies.

DC DC Switching Controllers Replacement Considerations

LTC3863EMSE#PBF serves as a commercial grade alternative within the same package. LTC3863HDE#PBF offers a DFN-12 package option for different thermal or spatial constraints. Verify pinout compatibility and control interface signals before substituting with any variant from the broader LTC3863 series.