Features: Fully Integrated VCC and Vpp Switching for
Dual-Slot PC Card Interface
Compatible With Controllers From Cirrus,
Intel, and Texas Instruments
Meets PCMCIA Standards
Internal Charge Pump (No External
Capacitors Required) 12-V Supply Can Be
Disabled Except for Programming
Short Circuit and Thermal Protection
Space Saving SSOP (DB) Package
Compatible With 3.3-V, 5-V and 12-V PC
Cards
Power Saving IDD = 83 A Typ, IQ = 1 A
Low rDS(on) (160-m VCC Switch)
Break-Before-Make Switching
Pinout
SpecificationsSupply voltage range, VDD . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to 7 V
Input voltage range for card power:VI(5V) . . . . . . . . . . . . . . . .. . . 0.3 V to 7 V
VI(3V) . . . . . . . . . . . . . . . . . 0.3 V to VI(5V)
VI(12V) . . . . . . . . . . . . . . . . . . 0.3 V to 14 V
Logic input voltage . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . 0.3 V to 7 V
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . .See Dissipation
Output current (each card): IO(xVCC) . . . . . . . . . . . . .. . . . . internally limited
IO(xVPP) . . . . . . . . . . . . . . . . . . internally limited
Operating virtual junction temperature range, TJ . . . . . . . . . . . . 40°C to 150°C
Operating free-air temperature range, TA . . . . . . . . . . . . . . . . 40°C to 85°C
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . 55°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . .. .. 260°C
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
TM 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.
TPS2201 Data Sheet
