LT3498EDDB

LED Driver IC Overview

The LT3498EDDB is a synchronous boost DC-DC converter manufactured by Analog Devices Inc., housed in an 8-lead DFN package. It operates with an input voltage range of 2.7V to 16V and delivers up to 500mA output current. The device features an adjustable switching frequency from 500kHz to 2MHz, enabling the use of small external components. Key electrical parameters include a quiescent current of 1.2mA during operation and 1μA in shutdown mode. The maximum output voltage reaches 40V, and it functions within a temperature range of -40°C to +85°C.

LED Driver IC Feature Summary

• Synchronous rectification architecture for improved efficiency
• Adjustable switching frequency to optimize component size
• Integrated power switch and control logic
• Shutdown mode for extended battery life

LED Driver IC Applications

• Battery-powered portable electronics
• White LED drivers
• General-purpose step-up power supplies
• Industrial sensor modules

LED Driver IC Procurement Notes

Verify the specific suffix (e.g., TRPBF) against official Analog Devices documentation to confirm tape-and-reel packaging and lead-free status. Cross-reference the manufacturer part number with authorized distributor catalogs to ensure authenticity. Confirm that the DFN-8 package dimensions match your PCB footprint requirements before finalizing procurement orders.

LED Driver IC Selection Notes

Select this component when a compact solution is required for stepping up low-voltage inputs to higher levels. The adjustable frequency allows designers to balance between electromagnetic interference and passive component size. Ensure the selected inductor supports the peak current demands of the application without saturation at the chosen switching frequency.

LED Driver IC Part Context

This part belongs to the LT349x family of synchronous boost converters designed for space-constrained applications. It shares architectural similarities with other members like the LT3494 but offers different current capabilities and frequency ranges. The DFN-8 package provides thermal performance suitable for moderate power densities in surface-mount assemblies.

LED Driver IC Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult Analog Devices official cross-reference guides or authorized distributor substitution tools for verified alternatives.