MAX1729EUB-T

Overview

The MAX1729EUB-T is a micropower step-up/step-down DC-DC converter designed for electrically controlled birefringence (ECB) and liquid-crystal-display (LCD) bias-supply generation. It operates with an input voltage range of 2.7 V to 5.5 V and provides an adjustable output voltage from 2.5 V to 16 V. The device delivers an output current of 2.5 mA at a switching frequency of 300 kHz. It functions within a temperature range of -40°C to +85°C and utilizes a UMAX-10 surface-mount package.

Feature Summary

• Integrates step-up and step-down conversion capabilities for flexible bias supply generation
• Provides accurate output voltage with temperature compensation features
• Optimized for low-power applications requiring ECB and LCD bias supplies

Applications

• Electrically controlled birefringence (ECB) bias supply generation
• Liquid-crystal-display (LCD) bias supply generation
• Portable electronic devices requiring efficient power management

Procurement Notes

Verify component authenticity through authorized channels due to discontinued status. Confirm RoHS compliance requirements as the specific variant may not meet current environmental standards. Validate package integrity upon receipt, ensuring the UMAX-10 form factor matches design specifications. Cross-reference datasheet revisions to ensure compatibility with existing system designs.

Selection Notes

Select this component when designing systems requiring combined boost and buck functionality for display or optical control circuits. Ensure input voltage constraints align with the 2.7 V to 5.5 V operational window. Consider the 2.5 mA output limit for load requirements. Verify thermal performance within the specified -40°C to +85°C range for the intended application environment.

Part Context

The MAX1729 belongs to the Maxim Integrated family of micropower switching regulators. It serves as a specialized solution for applications needing precise voltage regulation for sensitive analog components like LCDs and ECB modulators. The UMAX-10 package allows for compact board layouts in space-constrained portable electronics.

Replacement Considerations

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