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MAX4273EEE

MAX4273EEE Description

The MAX4273EEE from Analog Devices Inc./Maxim Integrated is a single-channel hot swap controller designed for general-purpose applications requiring safe insertion and removal of live circuits. Operating within a 2.7V to 13.2V supply range, it ensures robust protection against overvoltage (OVP), undervoltage (UVLO), and excessive inrush currents. With a 600 µA low supply current, it minimizes power consumption while maintaining high reliability. The device is housed in a 16-QSOP package and is ideal for surface-mount designs. Although marked obsolete, it remains a viable solution for legacy systems due to its programmable fault management and auto-retry capabilities.

MAX4273EEE Features

• Programmable Protection: Includes auto-retry, circuit breaker, current limit, fault timeout, and latched fault modes for flexible fault handling.
• Wide Voltage Range: Supports 2.7V–13.2V operation, making it versatile for various power rails.
• Low Power: 600 µA supply current reduces energy waste in always-on systems.
• Integrated Safeguards: OVP and UVLO protect against voltage transients and brownouts.
• Surface-Mount Design: 16-QSOP package ensures compact PCB integration.

MAX4273EEE Applications

• Server/Network Equipment: Safely hot-swap line cards or power modules without disrupting system operation.
• Industrial Systems: Protects sensitive electronics from voltage spikes during power cycling.
• Telecom Infrastructure: Ensures reliable power management in base stations and routers.
• Legacy Electronics: Suitable for maintaining or upgrading older systems requiring robust hot swap control.

Conclusion of MAX4273EEE

The MAX4273EEE offers a balanced combination of programmable protection, low power, and wide voltage compatibility, making it a dependable choice for hot swap applications. While obsolete, its fault-tolerant design and compact form factor continue to serve niche markets, particularly in industrial and telecom environments. Engineers seeking a proven solution for live insertion/removal scenarios will find its feature set highly advantageous.