MAX1775EEE-TG069

Overview

The MAX1775EEE-TG069 is a dual-output step-down DC-DC converter designed for portable applications. It operates with an input voltage range of 2.7V to 28V and features a switching frequency of 1.25MHz. The device integrates two independent buck converters within a single SSOP-16 package, providing adjustable output voltages. It supports an operating temperature range from -40°C to +85°C and includes built-in protection features for stable power rail generation in battery-powered systems.

Feature Summary

• Dual-output architecture enabling simultaneous generation of two independent regulated voltages from a single input source
• High-frequency 1.25MHz switching operation allowing for the use of compact external passive components
• Wide input voltage compatibility supporting direct connection to various battery chemistries and unregulated sources
• Integrated control circuitry simplifying design implementation by reducing external component count

Applications

• Power supply modules for Personal Digital Assistants (PDAs)
• Voltage regulation for palmtop computers and handheld devices
• Multi-rail power distribution in portable consumer electronics
• Battery-operated systems requiring efficient step-down conversion

Procurement Notes

Verify the specific suffix TG069 against the manufacturer's current documentation to confirm pinout and electrical specifications match your design requirements. Confirm availability status as this part may be discontinued or subject to limited production runs. Ensure the SSOP-16 package dimensions align with your PCB footprint constraints. Cross-reference the datasheet revision date to ensure compliance with latest safety and performance standards before finalizing procurement.

Selection Notes

Select this component when a compact solution is required to generate two distinct lower voltage rails from a higher voltage battery source. The 1.25MHz frequency is suitable for designs prioritizing small passive component size over ultra-low noise. Consider the thermal performance of the SSOP-16 package under maximum load conditions. Verify that the input voltage range covers the full discharge curve of the intended battery pack without exceeding the 28V absolute maximum rating.

Part Context

This part belongs to the Maxim Integrated power management portfolio, specifically targeting portable electronics. It serves as a cost-effective alternative to using two separate single-channel regulators, saving board space. The MAX1775 series was widely used in early 2000s mobile devices. Analog Devices Inc. acquired Maxim Integrated, and the product line continues under the ADI brand while maintaining legacy part numbering conventions for backward compatibility.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided reference data. Users should consult official distributor databases for cross-references based on electrical equivalence.