TPS2211A

具有并行接口的 1A 单槽 PC 卡电源开关

The 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.

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Fully Integrated VCC and Vpp Switching for Single-Slot PC Card™ Interface

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Low rDSon 70-m 5-V VCC Switch and 3.3-V VCC Switch

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Compatible With Industry-Standard Controllers

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3.3-V Low-Voltage Mode

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Meets PC Card Standards

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12-V Supply Can Be Disabled Except During 12-V Flash Programming

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Short-Circuit and Thermal Protection

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Space-Saving 16-Pin SSOP DB and 20-Pin HTSSOP PWP

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Compatible With 3.3-V, 5-V, and 12-V PC Cards

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Break-Before-Make Switching

PC Card is a trademark of PCMCIA Personal Computer Memory Card International Association.

LinBiCMOS, PowerPAD are trademarks of Texas Instruments.