LTC3863MPDE#TRPBF

DC DC Switching Controllers Overview

The LTC3863MPDE#TRPBF is a low quiescent current inverting DC/DC controller manufactured by Analog Devices Inc. It operates with an input voltage range of 3.5V to 60V and delivers a negative output voltage between -150mV and -15V. The device supports switching frequencies from 50kHz to 850kHz and features a maximum operating junction temperature of 150°C. Packaged in a DFN-12 surface-mount format, it includes integrated soft-start and current limit functions for robust power management.

DC DC Switching Controllers Feature Summary

• Inverts positive input voltages to generate regulated negative outputs using a single inductor
• Maintains ultra-low quiescent current across the full input voltage range
• Supports wide adjustable switching frequency synchronization
• Includes programmable soft-start and cycle-by-cycle current limiting

DC DC Switching Controllers Applications

• Automotive systems requiring negative rail generation
• Industrial equipment power supplies
• Op-amp biasing circuits
• RS-232 transceiver power rails

DC DC Switching Controllers Procurement Notes

Verify the MP suffix indicates military-grade qualification or extended temperature specifications compared to standard commercial variants. Confirm the DE package code matches the required DFN-12 footprint. Ensure RoHS compliance documentation aligns with project requirements. Validate availability status as supply may be restricted.

DC DC Switching Controllers Selection Notes

Select this component when a negative voltage rail is required from a positive source without transformer isolation. The wide input range accommodates automotive loads. The high thermal rating suits dense layouts. Compare against non-inverting buck controllers if positive outputs are needed instead.

DC DC Switching Controllers Part Context

This part belongs to the LTC3863 family of inverting DC/DC controllers. It shares core architecture with commercial grades but typically features enhanced reliability standards. The series is designed for applications demanding high efficiency and low standby power consumption in harsh environments.

DC DC Switching Controllers Replacement Considerations

LTC3863HDE#TRPBF

DC DC Switching Controllers FAQ

What is the minimum output voltage capability?

The controller can regulate negative output voltages down to -150mV.

Does the device support external clock synchronization?

Yes, the switching frequency can be synchronized to an external clock within the 50kHz to 850kHz range.