LTC7804HUD#TRPBF

DC DC Switching Controllers Overview

The LTC7804 is a low quiescent current synchronous boost controller designed for high-frequency operation. It supports input voltages from 1V to 60V and regulates output voltages up to 100V. The device features an internal 50µA supply current, enabling efficient standby performance. Switching frequencies are programmable between 320kHz and 2.25MHz via an external resistor or synchronized to an external clock. Integrated features include spread spectrum modulation for EMI reduction, phase-shift capability for paralleling, and comprehensive protection mechanisms such as cycle-by-cycle current limiting and thermal shutdown.

DC DC Switching Controllers Feature Summary

• Ultra-low quiescent current consumption for enhanced efficiency in battery-powered applications
• Integrated spread spectrum frequency dithering to minimize electromagnetic interference peaks
• Phase-shift control architecture allowing multiple controllers to operate in parallel with interleaved phases
• Wide operating input voltage range supporting direct connection to single-cell lithium batteries

DC DC Switching Controllers Applications

• Battery charging systems for portable electronics and industrial equipment
• Boost converters for LED lighting drivers requiring high brightness levels
• Power supplies for sensor nodes and IoT devices demanding extended battery life
• Industrial automation systems utilizing single-cell lithium power sources

DC DC Switching Controllers Procurement Notes

Verify the specific suffix configuration against the manufacturer's official datasheet to ensure compatibility with required packaging and temperature grades. Confirm that the #TRPBF designation matches the intended reel quantity and lead-free compliance standards. Cross-reference the lot traceability requirements with your quality management system before finalizing procurement orders.

DC DC Switching Controllers Selection Notes

Select this component when designing boost topologies requiring minimal no-load power consumption. Ensure the external inductor selection supports the maximum switching frequency without saturation. Verify that the PCB layout accommodates the thermal requirements of the QFN package under maximum load conditions. Consider the need for external synchronization if strict EMI limits must be met in noisy environments.

DC DC Switching Controllers Part Context

This part belongs to the LTC7804 family of synchronous boost controllers from Analog Devices. It shares architectural similarities with other members like the LTC7800 buck controller but is optimized specifically for step-up conversion. The device integrates gate drivers and control logic into a compact QFN-16 package, distinguishing it from discrete solutions or larger SOIC packages used in lower-density designs.

DC DC Switching Controllers Replacement Considerations

Direct pin-to-pin replacements within the same family should be verified against the official substitution guide. Ensure that any alternative component maintains compatible input voltage ranges and switching frequency capabilities. Check for differences in thermal resistance and package dimensions if physical constraints are critical.