LTC3863IMSE#TRPBF

DC DC Switching Controllers Overview

The LTC3863IMSE#TRPBF is a low quiescent current inverting DC/DC controller from Analog Devices Inc., designed to convert positive input voltages into negative outputs. It operates within an input voltage range of 3.5V to 60V and supports switching frequencies between 50kHz and 850kHz. The device features a 12-MSOP-EP package with exposed pad for thermal management, suitable for surface mount installation. It includes control characteristics such as current limit, enable, frequency control, and soft start. The operating junction temperature range extends from -40°C to 125°C.

DC DC Switching Controllers Feature Summary

• Converts positive input voltage to negative output using a single inductor topology
• Integrates Burst Mode operation capability to enhance efficiency at light loads
• Provides programmable soft-start to control output voltage slew rate during startup
• Includes power good signal output for system monitoring

DC DC Switching Controllers Applications

• Automotive electronics systems requiring negative rail generation
• Telecommunications infrastructure power supplies
• Industrial control and measurement equipment
• General-purpose inverting DC/DC converter designs

DC DC Switching Controllers Procurement Notes

Verify the specific suffix 'IMSE' indicates the industrial temperature grade (-40°C to 125°C) and MSOP-EP package configuration. Confirm '#TRPBF' denotes tape and reel packaging with lead-free finish. Cross-reference the manufacturer datasheet for the latest pinout and electrical specifications before finalizing procurement orders.

DC DC Switching Controllers Selection Notes

Select this component when a robust inverting topology is required with wide input voltage support up to 60V. Consider the 12-pin thermally enhanced MSOP package for space-constrained applications. Ensure the design utilizes external PMOS switches and an inductor compatible with the desired switching frequency range for optimal performance.

DC DC Switching Controllers Part Context

This part belongs to the LTC3863 family of low IQ inverting DC/DC controllers. It is distinct from buck or boost controllers, specifically optimized for generating negative voltages from positive sources. The IMSE variant specifies the industrial temperature rating and surface-mount packaging format provided by Analog Devices.

DC DC Switching Controllers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing circuit designs if considering alternative inverting controllers.