MAX1885EUP

Overview

The MAX1885EUP is a quad-output TFT LCD DC-DC converter designed for notebook and desktop display applications. It integrates one high-power step-up converter and two low-power charge pumps to generate three independent output voltages from a 2.7V to 5.5V input range. A built-in linear regulator provides an additional fourth output. The device operates at switching frequencies of 500kHz or 1MHz using current-mode PWM control, ensuring efficient power conversion for portable display systems.

Feature Summary

• Integrates multiple power stages including a step-up converter, charge pumps, and a linear regulator within a single package
• Supports wide input voltage ranges suitable for battery-powered portable devices
• Utilizes current-mode PWM control for stable operation across varying load conditions

Applications

• TFT LCD Notebook Displays
• TFT LCD Desktop Monitor Panels

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to potential availability constraints. Confirm RoHS compliance status and specific ordering suffixes against official Analog Devices documentation. Check for end-of-life notices or discontinuance alerts prior to procurement planning to ensure long-term supply stability.

Selection Notes

Select this component when designing power supplies for TFT LCD panels requiring multiple distinct voltage rails from a single source. Ensure the input voltage range aligns with the system's battery or supply characteristics. Consider thermal management requirements given the integration of multiple converters in a TSSOP package.

Part Context

This part belongs to the Maxim Integrated PMIC family specialized for display drivers. It addresses the complexity of powering modern TFT LCDs by consolidating boost, charge pump, and LDO functions into one compact solution, reducing board space and component count compared to discrete designs.

Replacement Considerations

Consult official Analog Devices substitution guides for verified alternatives. No public substitute part numbers are confirmed in available documentation.