Analog Devices Inc./Maxim Integrated Tariff Inquiry

MAX1797EUA

MAX1797EUA Description

The MAX1797EUA from Analog Devices Inc./Maxim Integrated is a high-efficiency, adjustable (programmable) synchronous boost DC-DC switching regulator designed to deliver up to 800mA of switch current. With an input voltage range of 1V to 5.5V and an adjustable output voltage ranging from 2V to 5.5V, it is optimized for applications requiring stable power conversion from low-voltage sources. The device operates at a 500kHz switching frequency, ensuring compact designs with minimal external components. Packaged in an 8-pin µMAX/USOP surface-mount form factor, it is ideal for space-constrained applications.

MAX1797EUA Features

• Synchronous Rectification: Enhances efficiency by reducing power losses compared to non-synchronous designs.
• Wide Input Range (1V–5.5V): Supports power conversion from single-cell batteries (e.g., alkaline, NiMH) or low-voltage rails.
• Adjustable Output (2V–5.5V): Programmable via external resistors for flexibility in diverse applications.
• High Switching Frequency (500kHz): Enables smaller inductor and capacitor sizes, reducing PCB footprint.
• Compact Package (8-pin µMAX/USOP): Suitable for portable and space-sensitive designs.
• Obsolete Status: While no longer in production, it remains a reliable choice for legacy designs or specific use cases.

MAX1797EUA Applications

• Portable Electronics: Powers devices like MP3 players, handheld instruments, and wireless sensors from single-cell batteries.
• Low-Voltage Systems: Ideal for boosting 1.8V/3.3V rails to higher voltages (e.g., 5V) in embedded systems.
• Battery-Powered Devices: Efficiently manages power in applications using alkaline or rechargeable cells.
• Industrial Sensors: Provides stable voltage conversion in low-power sensor nodes.

Conclusion of MAX1797EUA

The MAX1797EUA stands out for its synchronous boost topology, wide input range, and compact design, making it a robust solution for low-voltage power conversion. Despite its obsolete status, its efficiency and programmability ensure relevance in legacy or niche applications requiring reliable, high-performance voltage regulation. Engineers seeking a proven boost regulator for portable or low-power systems may find this IC a compelling option.