LTC3863MPMSE#PBF

DC DC Switching Controllers Overview

The LTC3863MPMSE#PBF is a robust inverting DC/DC PMOS controller optimized for automotive and industrial applications. It drives a P-channel power MOSFET to generate a negative output using a single inductor. The device operates with an input voltage range of 3.5V to 60V and supports switching frequencies from 50kHz to 850kHz. It features a low quiescent current of 70µA and functions within a junction temperature range of -55°C to 150°C. The component is housed in a 12-lead MSOP package with an exposed pad.

DC DC Switching Controllers Feature Summary

• Drives a P-channel power MOSFET to create a complete inverting DC/DC circuit with a single inductor
• Optimized for high-reliability automotive and industrial environments
• Includes control features such as current limit, enable, frequency control, and soft start

DC DC Switching Controllers Applications

• Automotive electronics systems requiring negative rail generation
• Industrial equipment power management
• Systems needing isolated or inverted voltage rails from a positive source

DC DC Switching Controllers Procurement Notes

Verify the specific suffix MPMSE indicates military-grade temperature performance (-55°C to 150°C) compared to commercial variants. Confirm RoHS compliance status via the manufacturer's latest documentation. Ensure the 12-MSOP-EP footprint matches the PCB layout requirements. Check for any recent Product Change Notifications regarding epoxy or bond wire changes that may affect assembly processes.

DC DC Switching Controllers Selection Notes

Select this part when a negative output voltage is required from a positive input source in harsh environments. The wide operating temperature range makes it suitable for under-hood automotive or outdoor industrial use. Compare against standard commercial grades if extreme temperature resilience is not necessary. Ensure the external P-channel MOSFET selected can handle the maximum input voltage and load current specifications.

DC DC Switching Controllers Part Context

This component belongs to the LTC3863 family of inverting DC/DC controllers manufactured by Analog Devices Inc. The base LTC3863 series provides efficient conversion from positive to negative voltages. The MPMSE variant specifically denotes extended military temperature ratings and enhanced reliability standards compared to standard commercial versions like the EMSE or HMSE.

DC DC Switching Controllers Replacement Considerations

Direct replacements include other parts within the LTC3863 family such as LTC3863EMSE#PBF or LTC3863HMSE#PBF, noting differences in temperature ranges. Verify pin compatibility and thermal performance when substituting commercial grade parts for military grade applications.