The TPS2211A PC Card power-interface switch provides an integrated power-management solution for a single PC Card. All of the discrete power MOSFETs, a logic section, current limiting, and thermal protection for PC Card control are combined on a single integrated circuit, using the Texas Instruments LinBiCMOS™ process. The circuit allows the distribution of 3.3-V, 5-V, and/or 12-V card power, and is compatible with many 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 the PC Card. 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 the PC Card.

The TPS2211A features a 3.3-V low-voltage mode that allows for 3.3-V switching without the need for 5 V. Bias power can be derived from either the 3.3-V or 5-V inputs. This facilitates low-power system designs such as sleep mode and pager mode where only 3.3 V is available.

End equipment for the TPS2211A includes notebook computers, desktop computers, personal digital assistants (PDAs), digital cameras, and bar-code scanners.

• Fully Integrated VCC and Vpp Switching for Single-Slot PC Card™ Interface
• Low rDS(on) (70-m 5-V VCC Switch and 3.3-V VCC Switch)
• Compatible With Industry-Standard Controllers
• 3.3-V Low-Voltage Mode
• Meets PC Card Standards
• 12-V Supply Can Be Disabled Except During 12-V Flash Programming
• Short-Circuit and Thermal Protection
• Space-Saving 16-Pin SSOP (DB) and 20-Pin HTSSOP (PWP)
• Compatible With 3.3-V, 5-V, and 12-V PC Cards
• Break-Before-Make Switching

PC Card is a trademark of PCMCIA (Personal Computer Memory Card International Association). LinBiCMOS, PowerPAD are trademarks of Texas Instruments.