LTC3863EDE#PBF

DC DC Switching Controllers Overview

The LTC3863EDE#PBF is a high-performance inverting DC/DC controller manufactured by Analog Devices Inc. It operates within an input voltage range of 3.5 V to 60 V and supports adjustable switching frequencies from 50 kHz to 850 kHz. The device delivers a negative output voltage ranging from -150 V to -400 mV with a maximum output current capability of 20 mA. Key electrical specifications include a quiescent current of 70 uA and a supply current of 50 uA. It features load regulation of -0.015% and functions reliably across an operating temperature range of -40°C to +150°C. The component is housed in a DFN-12 surface-mount package.

DC DC Switching Controllers Feature Summary

• Inverts positive input voltages to generate precise negative output rails using a single inductor topology
• Supports wide input voltage ranges up to 60 V for flexible power system integration
• Offers programmable switching frequency to optimize efficiency and external component size
• Integrates soft-start, current limit, and shutdown control for robust circuit protection

DC DC Switching Controllers Applications

• Generating negative bias voltages for operational amplifiers and analog circuits
• Powering RS-232 transceivers and communication interfaces requiring dual polarity supplies
• Industrial control systems needing isolated or non-isolated negative rail generation
• Test and measurement equipment requiring stable negative reference voltages

DC DC Switching Controllers Procurement Notes

Verify the specific suffix and tape/reel versus tube packaging options available through authorized distributors. Confirm RoHS compliance status and lead times directly with the manufacturer or certified suppliers. Ensure the ordering information matches the exact thermal pad requirements for the DFN-12 package during procurement planning.

DC DC Switching Controllers Selection Notes

Select this controller when a compact solution is required to generate negative voltages from a positive source without isolation. Consider the 70 uA quiescent current for battery-powered applications where standby power consumption is critical. Evaluate the 20 mA output current limit against the total load requirements of the target negative rail circuitry.

DC DC Switching Controllers Part Context

This component belongs to the LTC3863 family of inverting DC/DC controllers designed for space-constrained designs. It complements other PMIC solutions by providing efficient negative voltage conversion. The DFN-12 package offers a small footprint suitable for dense PCB layouts. Development tools like the DC1737A demo board are available for performance validation.

DC DC Switching Controllers Replacement Considerations

Review the LTC3863EMSE#PBF for identical functionality in a different MSOP-EP package configuration. Verify pinout compatibility and thermal characteristics before substituting packages within the same series.