LTC3863HDE#PBF

DC DC Switching Controllers Overview

The LTC3863HDE#PBF is an inverting DC/DC controller manufactured by Analog Devices Inc., designed to convert a positive input voltage into a negative output using a single external inductor. 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 regulated negative output between -150 V and -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 functions reliably across an extended temperature range from -40°C to +150°C TJ.

DC DC Switching Controllers Feature Summary

• Inverts positive input voltages to generate negative outputs using a single inductor topology
• Supports wide input voltage ranges up to 60 V for flexible power system integration
• Features low quiescent current operation to enhance efficiency in standby modes
• Includes programmable frequency control and soft-start functionality

DC DC Switching Controllers Applications

• Systems requiring negative bias rails for operational amplifiers or analog circuits
• Industrial equipment needing isolated or non-isolated negative power supplies
• Telecommunications infrastructure utilizing standard positive bus voltages
• Automotive electronics requiring robust negative voltage generation

DC DC Switching Controllers Procurement Notes

Verify the specific suffix HDE against the official Analog Devices datasheet to confirm package type, temperature grade, and pinout compatibility before procurement. Ensure that the ordering information matches the exact part number requirements for your design. Cross-reference the manufacturer's latest documentation to validate any recent product changes or obsolescence notices associated with this component variant.

DC DC Switching Controllers Selection Notes

Select this component when a compact solution is needed to generate negative voltages from a positive source without requiring complex transformer-based isolation. Consider the 20 mA output current limit and the specific inductor requirements for your load. Evaluate the thermal performance within the DFN-12 package relative to your expected ambient temperatures and duty cycles to ensure reliable long-term operation.

DC DC Switching Controllers Part Context

This part belongs to the LTC3863 family of inverting DC/DC controllers. It shares core architectural features with other variants like the LTC3863EMSE#TRPBF but differs in packaging and specific environmental ratings. The family is characterized by its ability to drive external N-channel MOSFETs for efficient power conversion while maintaining low static current consumption.

DC DC Switching Controllers Replacement Considerations

Direct substitutes within the same family include the LTC3863EMSE#TRPBF, which offers similar electrical characteristics but utilizes a different MSOP-EP package configuration. Verify pin-to-pin compatibility and thermal dissipation capabilities when considering alternative packages within the LTC3863 series.