LTC7800EUDC#PBF

DC DC Switching Controllers Overview

The LTC7800EUDC#PBF is a high-frequency synchronous buck controller from Analog Devices, designed for non-isolated DC/DC conversion. It operates with an input voltage range of 4V to 60V and supports output voltages from 800mV to 24V. The device features a programmable switching frequency between 320kHz and 2.25MHz, allowing optimization for efficiency or size. It utilizes current mode control with a maximum duty cycle of 98%. Packaged in a 20-lead QFN (3x3mm) exposed pad, it supports surface mount installation and functions within a junction temperature range of -40°C to +150°C.

DC DC Switching Controllers Feature Summary

• Supports high-frequency operation up to 2.25MHz for compact passive component sizing
• Enables clock synchronization for noise reduction and multi-phase interleaving
• Integrates low quiescent current architecture for improved light-load efficiency
• Provides precise current mode control with adjustable slope compensation

DC DC Switching Controllers Applications

• Industrial point-of-load regulation
• Automotive electronics power distribution
• Telecommunications infrastructure power supplies
• High-density server and computing board power stages

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #PBF indicates lead-free and RoHS compliance status according to the manufacturer's latest documentation. Confirm the package variant matches the required thermal performance and footprint specifications for your PCB layout. Ensure the operating environment stays within the specified -40°C to +150°C junction temperature limits to maintain reliability. Cross-reference the datasheet revision date to ensure compatibility with your design constraints.

DC DC Switching Controllers Selection Notes

Select this controller when input voltages exceed standard 40V limits but remain below 60V. Choose this part if system requirements demand switching frequencies above 1MHz to minimize inductor size. Consider this device for applications requiring phase synchronization across multiple converters. Evaluate thermal management capabilities given the exposed pad QFN package and high junction temperature rating.

DC DC Switching Controllers Part Context

This component belongs to the LTC7800 family of high-performance synchronous buck controllers. It shares architectural similarities with the LTC7801 and LTC7803 series but is optimized for lower input voltage ranges compared to the 150V-rated LTC7801. The EUDC package denotes a specific 20-lead QFN form factor distinct from the TRPBF tape-and-reel variant.

DC DC Switching Controllers Replacement Considerations

The LTC7800EUDC#TRPBF serves as the reel-pack equivalent. For higher input voltage requirements, consider the LTC7801 series. Lower input voltage alternatives include the LTC7803. Verify pinout compatibility and thermal characteristics before substituting.