TPS2205

DUALSLOT PC CARD POWERINTERFACE SWITCH

FOR PARALLEL PCMCIA CONTROLLERS

SLVS128E OCTOBER 1995 − REVISED JANUARY 2001

1

POST OFFICE BOX 655303

Dual-Slot PC Card

 Interface

12-V Flash Programming

description

The TPS2205 PC Card power-interface switch

provides

an

integrated

power-management

solution for two PC Cards. 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 (IC), 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.

The TPS2205 is backward compatible with the

Bias current is derived from either the 3.3-V input

pin or the 5-V input pin. The TPS2205 also

eliminates the APWR_GOOD and BPWR_GOOD

pins of the TPS2201.

The TPS2205 features a 3.3-V low-voltage mode that allows for 3.3-V switching without the need for 5 V. This

facilitates low-power system designs such as sleep mode and pager mode where only 3.3 V is available.

End equipment for the TPS2205 includes notebook computers, desktop computers, personal digital assistants

(PDAs), digital cameras, and bar-code scanners.

Please 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.

LinBiCMOS is a trademark of Texas Instruments.

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

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

Copyright

 2001, Texas Instruments Incorporated

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5V

5V

A_VPP_PGM

A_VPP_VCC

A_VCC5

A_VCC3

12V

AVPP

AVCC

AVCC

AVCC

GND

NC

SHDN

3.3V

5V

B_VPP_PGM

B_VPP_VCC

B_VCC5

B_VCC3

NC

12V

BVPP

BVCC

BVCC

BVCC

NC

OC

3.3V

3.3V

DB OR DF PACKAGE

(TOP VIEW)

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5V

5V

NC

A_VPP_PGM

A_VPP_VCC

A_VCC5

A_VCC3

12V

AVPP

AVCC

AVCC

AVCC

GND

SHDN

NC

3.3V

5V

NC

B_VPP_PGM

B_VPP_VCC

B_VCC5

NC

B_VCC3

12V

BVPP

BVCC

BVCC

BVCC

OC

NC

3.3V

3.3V

DAP PACKAGE

(TOP VIEW)

NC − No internal connection