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TPS2201IDBR-TPS2201IDFR
1A Dual-Slot PC Card Power Switch w/ Parallel Interface
Internal Charge Pump (No ExternalCapacitors Required) – 12-V Supply Can Be
Disabled Except for Programming Short-Circuit and Thermal Protection Space Saving SSOP (DB) Package For 3.3-V, 5-V and 12-V PC Cards Power Saving IDD = 83 μA Typ, IQ = 1 μA Low rDS(on) (160-mΩ VCC Switch) Break-Before-Make Switching
descriptionThe TPS2201 PC Card (PCMCIA) power interface switch provides an integrated power-management solution
for two PC Cards. All of the discrete power MOSFETs, a logic section, current limiting, thermal protection, and
power-good reporting for PC Card control are combined on a single integrated circuit (IC), using Texas
Instruments LinBiCMOS process. The circuit allows the distribution of 3-V, 5-V and/or 12-V card power and
is compatible with most PCMCIA controllers. The current-limiting feature eliminates the need for fuses, which
reduces component count and improves reliability; current-limit reporting can help the user isolate a system fault
to a bad card.
The TPS2201 maximizes battery life by generating its own switch-drive voltage using an internal charge pump.
Therefore, the 12-V supply can be powered down and only brought out of standby when flash memory needs
to be written to or erased. End equipment for the TPS2201 includes notebook computers, desktop computers,
personal digital assistants (PDAs), digital cameras, handiterminals, and bar-code scanners.
typical PC card power distribution application
Power Supply
VDDPlease be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PC Card is a trademark of PCMCIA (Personal Computer Memory Card International Association).
