LTC3218EDDB#TRMPBF

LED Driver IC Overview

The LTC3218EDDB#TRMPBF is a single-channel switched capacitor charge pump LED driver manufactured by Analog Devices Inc. It operates from a supply voltage range of 2.7V to 5.5V and delivers a regulated output current of up to 400mA. The device utilizes a DFN-10 package for surface-mount installation. It supports external dimming control via an analog input pin, allowing for precise brightness adjustment. The internal switching frequency is fixed at 1.5MHz, enabling the use of small external components.

LED Driver IC Feature Summary

• Integrated high-efficiency switched capacitor topology for compact LED driving
• Analog dimming capability through dedicated external control pin
• Fixed 1.5MHz switching frequency minimizes passive component size
• Regulated constant current output ensures consistent LED brightness

LED Driver IC Applications

• Camera flash LED drivers in mobile devices
• Indicator lighting in portable electronics
• Backlighting applications requiring small form factor
• General purpose LED illumination in battery-powered systems

LED Driver IC Procurement Notes

Verify the specific suffix TRMPBF indicates tape and reel packaging with lead-free finish when sourcing. Confirm the manufacturer is Analog Devices Inc. as listed on official datasheets. Check RoHS compliance documentation for environmental requirements. Ensure the DFN-10 footprint matches your PCB layout constraints before procurement.

LED Driver IC Selection Notes

Select this component when a single-channel, high-current LED driver is needed in a minimal footprint. It is suitable for applications powered by single-cell lithium batteries or USB supplies. Consider the 400mA output limit and 5.5V maximum input voltage during circuit design. The analog dimming feature makes it appropriate for applications requiring smooth brightness transitions.

LED Driver IC Part Context

This part belongs to the LTC3218 family of LED drivers from Analog Devices. It is designed specifically for camera flash and indicator applications where space is limited. The DFN-10 package provides thermal performance advantages over larger packages while maintaining electrical efficiency. It complements other power management solutions in portable consumer electronics.

LED Driver IC Replacement Considerations

Consult official Analog Devices substitution guides for verified alternatives. Cross-reference pin compatibility and electrical specifications carefully. Verify that any substitute maintains the same DFN-10 package dimensions and thermal characteristics.