LTC7840IUFD#PBF

DC DC Switching Controllers Overview

The LTC7840IUFD#PBF is a dual-channel synchronous boost controller manufactured by Analog Devices Inc. It supports Boost, Flyback, and SEPIC topologies with two independent outputs. The device operates within an input voltage range of 5.5 V to 60 V and features a programmable switching frequency from 50 kHz to 425 kHz. It achieves a maximum duty cycle of 96% and provides a 10 V output drive capability. The component is housed in a QFN-28 package and functions reliably across an operating temperature range of -40°C to +125°C.

DC DC Switching Controllers Feature Summary

• Supports multiple non-isolated power conversion topologies including Boost, Flyback, and SEPIC configurations for flexible system design.

DC DC Switching Controllers Applications

• Industrial power supply systems requiring multi-rail regulation
• Automotive electronics utilizing wide input voltage ranges
• Telecommunications infrastructure power management

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and RoHS standards before procurement. Confirm the QFN-28 package dimensions match your PCB footprint requirements. Ensure the selected variant meets the required thermal performance for your specific application environment.

DC DC Switching Controllers Selection Notes

Select this controller when designing dual-output non-isolated converters requiring high efficiency and wide input voltage tolerance. Consider the 50 kHz to 425 kHz frequency range for optimizing external component size versus switching losses. Verify that the 60 V maximum input rating aligns with your source voltage conditions.

DC DC Switching Controllers Part Context

This part belongs to the LTC7840 series of synchronous step-up controllers designed for demanding industrial and automotive applications. It integrates precision control loops for accurate regulation of multiple outputs. The series emphasizes high efficiency and robust performance under varying load and line conditions.

DC DC Switching Controllers Replacement Considerations

LTC7840HUFD#PBF offers an extended maximum junction temperature rating of +150°C compared to the +125°C limit of the IUFD variant, while maintaining identical electrical specifications and pinout compatibility.