A status flag output reports fault conditions, and the device includes fixed current limiting and over-temperature protection to guard the card slot and host board against shorts or overcurrent events. The 3:4 input-to-output ratio means three supply inputs are mapped across four outputs, a topology designed for the dual-voltage sequencing requirements of PCMCIA and CardBus applications.
On-resistance and thermal budget for the slot
With a typical Rds(on) of 95 mOhm per channel, the conduction loss at 1 A is under 100 mW per output — manageable in the 24-HTSSOP package if the exposed pad is soldered to a copper plane.
No direct pin-compatible replacement has been officially designated in the available records. For existing BOM lines, procurement must turn to independent distribution and surplus inventory channels.