LTC3862IUH-2#TRPBF

DC DC Switching Controllers Overview

The LTC3862IUH-2#TRPBF is a two-phase constant frequency, current mode boost and SEPIC controller manufactured by Analog Devices Inc. It drives N-channel power MOSFETs to reduce input ripple and allow the use of smaller inductors and capacitors. The device operates with a supply voltage range of 5.5V to 36V and supports switching frequencies from 75kHz to 500kHz. It features a maximum duty cycle of 96% and includes control characteristics such as enable, frequency control, phase control, and soft start. The component is housed in a 24-QFN (5x5) package and is designed for surface mount installation.

DC DC Switching Controllers Feature Summary

• Two-phase operation reduces input ripple and allows for smaller passive components
• Supports boost and SEPIC topologies for flexible voltage conversion
• Integrates phase control for synchronized multi-phase applications
• Includes programmable soft start and frequency control capabilities

DC DC Switching Controllers Applications

• Point-of-load regulation in telecommunications infrastructure
• Industrial equipment power distribution systems
• Portable electronics requiring efficient step-up conversion
• Automotive infotainment and sensor power supplies

DC DC Switching Controllers Procurement Notes

Verify that the specific suffix TRPBF indicates tape and reel packaging rather than tube packaging when ordering. Confirm the operating temperature range requirements align with the specified junction temperature limits. Ensure compatibility with the required switching frequency settings before finalizing procurement specifications.

DC DC Switching Controllers Selection Notes

Select this controller for applications requiring high efficiency in boost or SEPIC configurations. Consider the two-phase architecture if input ripple reduction is critical. Evaluate the available switching frequency range against filter component size constraints. Verify that the drive capability matches the selected N-channel MOSFET gate charge requirements.

DC DC Switching Controllers Part Context

This component belongs to the LTC3862 family of DC/DC controllers. It shares architectural similarities with other Linear Technology power management ICs but is specifically optimized for non-isolated step-up applications. The part integrates essential control loops while offloading power switching to external MOSFETs.

DC DC Switching Controllers Replacement Considerations

Direct replacements include the LTC3862EUH-2#PBF and LTC3862IUH#PBF variants within the same family. These parts share identical electrical functionality but differ in packaging type or temperature rating. Verify pinout compatibility and thermal performance when substituting.