LTC7803JUD#WTRPBF

DC DC Switching Controllers Overview

The LTC7803JUD#WTRPBF is a low quiescent current synchronous buck controller manufactured by Analog Devices Inc. It operates with an input voltage range of 4.5V to 40V and supports switching frequencies from 100kHz to 3MHz. The device features 100% maximum duty cycle capability and includes spread spectrum frequency modulation. It utilizes a 16-WFQFN (3x3) package with exposed pad for surface mount installation. The controller supports clock synchronization, phase control, and frequency control, operating within a junction temperature range of -40°C to 150°C.

DC DC Switching Controllers Feature Summary

• Integrates spread spectrum frequency modulation to reduce EMI noise peaks
• Supports external clock synchronization and multi-phase parallel operation
• Features ultra-low quiescent current for high efficiency in light load conditions
• Provides 100% duty cycle capability for minimal dropout voltage

DC DC Switching Controllers Applications

• Industrial power supply systems
• Telecommunications infrastructure equipment
• Point-of-load regulation modules
• Automotive electronics subsystems

DC DC Switching Controllers Procurement Notes

Verify the specific suffix JUD corresponds to the intended temperature grade and package variant against the official datasheet. Confirm RoHS compliance status and lead times directly with authorized distributors. Ensure the ordering part number matches the required tape and reel packaging format for automated assembly processes.

DC DC Switching Controllers Selection Notes

Select this component when designing high-efficiency step-down converters requiring wide input voltage ranges up to 40V. Consider the 16-QFN package for compact board space requirements. Evaluate the thermal performance capabilities given the 150°C junction temperature rating for demanding industrial environments.

DC DC Switching Controllers Part Context

This part belongs to the LTC7803 family of synchronous buck controllers designed for applications requiring low IQ and high performance. It complements other variants like the EMSE package version, offering different thermal and mechanical solutions while maintaining identical electrical control characteristics and functionality.

DC DC Switching Controllers Replacement Considerations

LTC7803EMSE#PBF offers similar electrical specifications in an MSOP-16 package. Verify pinout compatibility and thermal dissipation requirements when substituting packages within the same product family.