Obsolete — last-time-buy sourcing reality
The TPS2201IDBR is obsolete per the manufacturer's product status.
PCMCIA power switch — what it does
The TPS2201IDBR is a PCMCIA power switch from Texas Instruments, designed to control and distribute power to PCMCIA (PC Card) slots in notebook computers, docking stations, and embedded systems. It integrates four high-side outputs with a 3:4 input-to-output ratio, handling load voltages of 3.3V, 5V, and 12V — the standard voltage rails required by PCMCIA cards. Each output is rated for a maximum continuous current of 1A, with a typical on-resistance of 160 mOhm max. The parallel interface simplifies control from a host controller or GPIO.
Protection and monitoring features
Built-in fault protection includes fixed current limiting and over-temperature shutdown, which guard against short circuits and thermal overload. The Power Good and Status Flag outputs provide real-time feedback to the system controller, indicating when the output voltage is within regulation or a fault condition exists.
Housed in a 30-pin SSOP package (0.209-inch body width, 5.30 mm), surface-mount.