PCMCIA power switch — what the 160 mOhm Rds(on) means for the slot
The TPS2202AIDBR: Its 160 mOhm max Rds(on) per output sets the conduction loss floor — at 1 A per slot the I²R drop is 160 mW, manageable in the 30-SSOP package but worth factoring into the thermal budget of a tightly packed PCMCIA controller.
Four outputs, serial control, and fault protection
The switch integrates four high-side outputs with a 3:4 input-to-output ratio, controlled through a serial interface. Built-in fault protection includes fixed current limiting and over-temperature shutdown — the over-temperature trip prevents damage during a sustained slot short, while the current limit holds each output to its 1 A maximum. Power Good and Status Flag outputs give the host controller real-time visibility into rail health.
Obsolete — sourcing the TPS2202AIDBR today
Confirm date-code provenance and quantity against the RFQ.