LTC3863MPDE#PBF

DC DC Switching Controllers Overview

The LTC3863MPDE#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 inductor. It operates within an input voltage range of 3.5 V to 60 V and supports an adjustable switching frequency from 50 kHz to 850 kHz. The device delivers a regulated negative output between -150 mV and -400 mV with a maximum output current capability of 20 mA. Key electrical specifications include a quiescent current of 70 µA and a supply current of 50 µA. It features a load regulation of -0.015% and functions reliably across an extended temperature range from -40°C to +150°C, housed in a DFN-12 surface-mount package.

DC DC Switching Controllers Feature Summary

• Converts positive input voltages to negative outputs utilizing a single inductor topology
• Supports wide input voltage ranges up to 60 V for flexible power sourcing
• Enables precise output regulation with low load regulation characteristics
• Operates at high switching frequencies to optimize passive component size

DC DC Switching Controllers Applications

• Industrial control systems requiring negative bias rails
• Telecommunications equipment power distribution networks
• Automotive electronics with varying input voltage conditions
• Data acquisition systems needing isolated negative supplies

DC DC Switching Controllers Procurement Notes

Verify the specific suffix 'MPDE' against official Analog Devices documentation to confirm military-grade qualification and tape-and-reel packaging status. Ensure the order includes the '#PBF' designation to guarantee lead-free compliance and halogen-free materials as per RoHS standards. Cross-reference the manufacturer part number directly with authorized distributors to validate authenticity and traceability before finalizing procurement.

DC DC Switching Controllers Selection Notes

Select this component when a compact solution is required to generate a stable negative voltage from a positive source without complex transformer isolation. The wide input range accommodates fluctuating supply lines common in automotive and industrial environments. Consider the thermal performance within the DFN-12 package for high-temperature applications exceeding standard commercial limits. Evaluate the switching frequency requirements to balance efficiency against electromagnetic interference constraints.

DC DC Switching Controllers Part Context

This part belongs to the LTC3863 family of inverting DC/DC controllers, which are engineered for efficient positive-to-negative voltage conversion. The series is characterized by its ability to drive external N-channel MOSFETs for high-performance rectification. The MPDE variant indicates specific manufacturing qualifications and packaging configurations distinct from standard commercial versions, targeting rigorous operational environments.

DC DC Switching Controllers Replacement Considerations

LTC3863HDE#PBF

DC DC Switching Controllers FAQ

What is the minimum input voltage required for the LTC3863MPDE#PBF?

The device requires a minimum input voltage of 3.5 V to operate correctly.

Does the LTC3863MPDE#PBF support synchronous rectification?

No, the datasheet specifies that synchronous rectification is not included; it drives external N-channel MOSFETs.