LTC7803EUD#TRPBF

DC DC Switching Controllers Overview

The LTC7803EUD#TRPBF is a synchronous step-down DC/DC switching 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 a maximum duty cycle of 100% and includes clock synchronization capabilities. It utilizes a 16-WFQFN package with exposed pad, measuring 3x3mm. The controller supports enable, frequency control, and phase control functions, operating within a junction temperature range of -40°C to 125°C.

DC DC Switching Controllers Feature Summary

• Integrates low quiescent current architecture for efficient power management in battery-powered applications.
• Supports spread spectrum modulation to reduce EMI emissions across the audible frequency range.
• Enables precise multi-phase operation through dedicated phase control pins for load balancing.

DC DC Switching Controllers Applications

• Industrial automation systems requiring isolated or non-isolated power conversion
• Telecommunications infrastructure equipment
• Portable electronic devices with strict size constraints

DC DC Switching Controllers Procurement Notes

Verify the specific suffix 'EUD' indicates the 16-QFN(3x3) package variant when sourcing. Confirm RoHS compliance status matches project requirements. Ensure the supplier provides official datasheets referencing the exact part number to avoid confusion with similar LTC7803 variants. Check for moisture sensitivity labeling if storage conditions are critical.

DC DC Switching Controllers Selection Notes

Select this component when a single-output synchronous buck topology is required with high efficiency at light loads. The wide input voltage range suits applications powered by 12V or 24V buses. Consider the thermal performance of the QFN package for PCB layout optimization. Evaluate the need for external compensation components based on the target output voltage and load transient specifications.

DC DC Switching Controllers Part Context

This part belongs to the LTC7803 family of low IQ synchronous buck controllers. It shares core architectural features with other members like the LTC7803EMSE but differs in package type and thermal characteristics. The family is designed for applications demanding high efficiency and compact form factors.

DC DC Switching Controllers Replacement Considerations

LTC7803EMSE#PBF offers identical electrical functionality in an MSOP-16 package. Verify pinout compatibility and thermal dissipation requirements before substitution. Other family members may require different external component values due to package-specific parasitic differences.