MAX1848EKA-T

LED Driver IC Overview

The MAX1848EKA-T is a high-efficiency white LED step-up converter manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single supply voltage ranging from 2.6V to 5.5V and delivers a regulated output voltage of up to 13V. The device supports an output current of 500mA via its internal switch, utilizing a boost topology to drive multiple series-connected LEDs. Packaged in an SOT-23-8 footprint, it integrates protection features including thermal shutdown and open/short circuit detection. The component is designed for portable applications requiring efficient backlighting solutions.

LED Driver IC Feature Summary

• Integrates a high-efficiency boost DC-DC regulator optimized for driving white LEDs
• Provides constant current output with integrated thermal and fault protection
• Operates on a single low-voltage supply suitable for battery-powered devices

LED Driver IC Applications

• Backlighting for cell phones
• Display illumination for PDAs
• LED lighting in other hand-held devices

LED Driver IC Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when ordering. Confirm the manufacturer status as the source indicates potential obsolescence or end-of-life phases. Ensure compatibility with the required SOT-23-8 footprint during PCB layout. Cross-reference the exact part number with official distributor catalogs to confirm current availability and authenticity before finalizing procurement plans.

LED Driver IC Selection Notes

Select this component when designing portable electronics that require efficient white LED backlighting from a single-cell lithium-ion or similar battery source. It is appropriate for space-constrained designs due to the compact SOT-23-8 package. Consider the 500mA switch current limit and 13V maximum output voltage when determining the number of series LEDs. Verify input voltage ranges match the system's power supply specifications.

LED Driver IC Part Context

The MAX1848 belongs to Maxim Integrated's family of LED driver ICs designed for portable consumer electronics. It addresses the need for efficient, small-footprint solutions for illuminating displays in mobile devices. The EKA variant specifically denotes the SOT-23-8 package option. This series complements other power management solutions by providing dedicated functionality for LED string driving in compact form factors.

LED Driver IC Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official Analog Devices resources for current alternative recommendations if this component is discontinued.