LTC7803HUD#PBF

DC DC Switching Controllers Overview

The LTC7803HUD#PBF is a synchronous step-down controller from Analog Devices, designed for high-efficiency power conversion. It operates with an input voltage range of 4.5V to 40V and supports switching frequencies from 100kHz to 3MHz. The device features spread spectrum modulation to reduce EMI. It provides up to 100% maximum duty cycle and includes clock synchronization capabilities. Packaged in a 16-lead QFN (3x3) exposed pad, it functions within a junction temperature range of -40°C to 150°C.

DC DC Switching Controllers Feature Summary

• Integrated spread spectrum frequency modulation for enhanced electromagnetic interference reduction
• Synchronous buck topology supporting up to 100 percent continuous duty cycle operation
• External clock synchronization capability for multi-phase or parallel system alignment

DC DC Switching Controllers Applications

• Industrial automation power supplies
• Telecommunications infrastructure equipment
• Point-of-load regulation modules

DC DC Switching Controllers Procurement Notes

Verify the specific suffix designation against official Analog Devices documentation to confirm thermal grade and package variant accuracy. Ensure that the requested component matches the exact part number specifications required for your design implementation. Cross-reference datasheet revisions to confirm pinout and electrical parameter consistency before finalizing procurement orders.

DC DC Switching Controllers Selection Notes

Select this controller when designing non-isolated DC-DC converters requiring low quiescent current and wide input voltage flexibility. Consider the 16-QFN package constraints for thermal management and PCB layout requirements. Evaluate the need for external compensation components based on the desired loop stability and transient response characteristics for the target application load profile.

DC DC Switching Controllers Part Context

This component belongs to the LTC7803 family of synchronous step-down controllers. It shares functional similarities with other members like the LTC7803EUD and LTC7803JUD, differing primarily in temperature rating and package options. The series targets applications demanding efficient power management with reduced acoustic noise through spread spectrum technology.

DC DC Switching Controllers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.