MAX1579ETG

Overview

The MAX1579ETG is a complete bias and white LED power supply IC designed for LCD displays. It integrates a current-mode boost controller with six-channel LED backlight drivers. The device operates from a 2.7V to 5.5V supply, delivering up to 25mA output current per channel. It features a 1MHz switching frequency and supports TQFN-24 packaging. Operating temperature ranges from -40°C to +85°C.

Feature Summary

• Integrates a current-mode boost controller with six-channel LED backlight drivers
• Provides complete bias and white LED power supply functionality
• Supports operation across a wide input voltage range of 2.7V to 5.5V

Applications

• LCD display backlighting systems
• Mobile phone display modules
• Portable electronic devices requiring integrated power management

Procurement Notes

Verify the specific suffix (e.g., ETG vs ETG+T) against official Analog Devices documentation to ensure correct packaging and tape-and-reel specifications. Confirm RoHS compliance status directly with the manufacturer or authorized distributors, as indicated by the '+' suffix in related part numbers. Cross-reference the datasheet revision date to ensure compatibility with current design requirements.

Selection Notes

Select this component when an integrated solution for both bias generation and multi-channel LED driving is required. The 1MHz switching frequency allows for smaller external passive components compared to lower-frequency alternatives. Ensure the application input voltage falls within the 2.7V to 5.5V range and that the thermal performance of the TQFN-24 package meets the system's heat dissipation needs.

Part Context

This part belongs to the MAX157x series of LED lighting driver ICs from Maxim Integrated. It complements other variants like the MAX1576 and MAX1578, which offer different channel counts or charge pump topologies. The MAX1579 specifically targets applications needing multiple LED channels driven by a single boost converter architecture.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.