LTC3863MPMSE#TRPBF

DC DC Switching Controllers Overview

The LTC3863MPMSE#TRPBF is a low quiescent current inverting DC/DC controller manufactured by Analog Devices Inc. It converts a positive input voltage to a negative output using a single external inductor and PMOS switch. The device supports an input voltage range of 3.5V to 60V and operates with a switching frequency between 50kHz and 850kHz. It features adjustable current limit, enable control, frequency synchronization capability, and soft-start functionality. The component is housed in a 12-MSOP package with an exposed pad and is rated for operation from -40°C to +125°C junction temperature.

DC DC Switching Controllers Feature Summary

• Inverting topology utilizing a single inductor to generate negative voltage from a positive source
• Low quiescent current operation optimized for battery-powered applications
• Integrated PMOS driver eliminating the need for external level shifters
• Adjustable switching frequency and programmable soft-start

DC DC Switching Controllers Applications

• Automotive systems requiring isolated negative rail generation
• Industrial equipment needing dual polarity power supplies
• Telecommunications infrastructure with high-voltage inputs
• Portable devices extending battery life through low standby current

DC DC Switching Controllers Procurement Notes

Verify the specific suffix MP indicates military-grade qualification or extended temperature range if required by your design specifications. Confirm the TRPBF designation ensures lead-free packaging and RoHS compliance. Cross-reference the manufacturer's latest datasheet revision to ensure pinout and electrical characteristics match your schematic requirements before finalizing procurement.

DC DC Switching Controllers Selection Notes

Select this controller when a negative voltage rail is required from a positive input without complex transformer isolation. It is suitable for designs prioritizing low static current consumption over high efficiency at light loads. Ensure the external PMOS switch selected can handle the maximum input voltage and peak current demands of the application.

DC DC Switching Controllers Part Context

This component belongs to the LTC3863 family of inverting DC/DC controllers designed for high-voltage input applications. It shares functional similarities with other Linear Technology regulators but is specifically optimized for generating negative outputs. The MSOP package provides a compact solution for space-constrained designs requiring robust performance in automotive and industrial environments.

DC DC Switching Controllers Replacement Considerations

Direct replacements include the LTC3863EMSE#TRPBF for commercial grade or LTC3863HMSE#PBF for higher temperature ratings. Verify that any substitute maintains the same inverting topology and input voltage range compatibility.