LTC7840HUFD#PBF

DC DC Switching Controllers Overview

The LTC7840HUFD#PBF is a dual-phase, dual-output synchronous step-down controller from Analog Devices. It supports Boost, Flyback, and SEPIC topologies with a 5.5 V to 60 V input range. The device operates at switch frequencies between 50 kHz and 425 kHz and achieves up to 96% maximum duty cycle. It features two independent outputs regulated to 10 V. Designed for industrial environments, it functions reliably within an operating temperature range of -40°C to +150°C. The component is housed in a QFN-28 surface-mount package.

DC DC Switching Controllers Feature Summary

• Dual-phase architecture enabling simultaneous control of two independent output channels
• Supports multiple non-isolated power conversion topologies including Boost, Flyback, and SEPIC
• Integrated shutdown capability for system power management
• High thermal performance rated for extended industrial operating temperatures

DC DC Switching Controllers Applications

• Industrial power supply systems requiring multi-rail regulation
• Automotive electronics utilizing high-voltage input ranges
• Telecommunications infrastructure power distribution
• Avionics equipment demanding wide temperature stability

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #PBF indicates tube packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the QFN-28 footprint matches your PCB layout requirements. Check current availability as supply may be restricted or limited. Validate that the 60 V maximum input rating aligns with your system's voltage profile.

DC DC Switching Controllers Selection Notes

Select this controller for applications requiring independent dual-channel regulation from a single high-voltage source. The wide input range accommodates various bus voltages without external level shifting. Consider the thermal dissipation capabilities of the QFN-28 package for high-current designs. Verify that the required switching frequency falls within the 50 kHz to 425 kHz operational window for optimal efficiency.

DC DC Switching Controllers Part Context

This component belongs to the LTC7840 series of switching controllers designed for high-efficiency power conversion. It serves as a core management IC for complex power architectures in demanding environments. The device integrates precision control loops to maintain stable output voltages under varying load conditions. It represents Analog Devices' focus on robust, high-performance power management solutions for industrial sectors.

DC DC Switching Controllers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult Analog Devices technical support for qualified alternatives if this specific variant is unavailable. Ensure any replacement maintains compatibility with the QFN-28 package and 60 V input specifications.