What the supervisor does in a PCMCIA slot
The MAX1604EAI+: This IC supervises the power-switching logic inside a PCMCIA (PC Card) interface — it sequences VCC and VPP rails, monitors overcurrent, and reports fault conditions back to the host controller. The function is specific to the PCMCIA power-management standard, not a general-purpose supervisor.
Compliance and package note
Supplied in Bulk (tube or tray, depending on factory fill); the package is a 28-pin SSOP (EAI suffix).