LTC3863EDE#TRPBF

DC DC Switching Controllers Overview

The LTC3863EDE#TRPBF is an inverting DC/DC controller manufactured by Analog Devices Inc. It converts a positive input voltage to a negative output using a single external inductor and switch. The device operates with an input voltage range of 3.5 V to 60 V and provides an adjustable output voltage from -150 V to -400 mV. It supports a maximum output current of 20 mA and features a programmable switching frequency between 50 kHz and 850 kHz. The quiescent current is specified at 70 uA, with an operating supply current of 50 uA. It functions within a temperature range of -40°C to +150°C TJ and is housed in a 12-lead DFN package.

DC DC Switching Controllers Feature Summary

• Inverts positive input voltages to negative outputs using a single inductor topology
• Supports wide input voltage ranges up to 60 V for flexible power sourcing
• Features low quiescent current operation for improved efficiency in standby modes
• Includes programmable soft-start and cycle-by-cycle current limiting protection

DC DC Switching Controllers Applications

• Industrial control systems requiring negative bias rails
• Telecommunications equipment power management
• Embedded systems needing isolated or non-isolated negative voltage generation
• Sensor interfaces requiring dual polarity power supplies

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when ordering. Confirm the EDE variant matches the required thermal performance and package dimensions for your PCB layout. Ensure compatibility with external components such as Schottky diodes and inductors rated for the target current and voltage levels. Check for any recent production change notices regarding material composition or marking updates.

DC DC Switching Controllers Selection Notes

Select this component when a compact solution for generating negative voltage from a positive source is required. It is suitable for applications where space constraints favor a single-inductor design over transformer-based solutions. Consider the 12-lead DFN package for thermal dissipation needs. Evaluate the 20 mA output limit against load requirements before finalizing the design.

DC DC Switching Controllers Part Context

This part belongs to the LTC3863 family of inverting DC/DC controllers. It shares core architecture with other variants like the HMSE and EMSE versions, differing primarily in temperature grades and packaging formats. The family is designed for high-efficiency inversion in portable and industrial electronics.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include LTC3863HMSE#PBF and LTC3863EMSE#TRPBF. Verify pinout compatibility and thermal characteristics when swapping between these variants. Ensure the replacement part meets the same electrical specifications for input voltage and output current.