TPS2211A

SINGLESLOT PC CARD POWER INTERFACE SWITCH

FOR PARALLEL PCMCIA CONTROLLERS

SLVS282B − SEPTEMBER 2000 − REVISED JULY 2005

17

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APPLICATION INFORMATION

VCC

FB

OUT

GND

EN

REF

SS

COMP

1

2

3

4

8

7

6

5

TPS6734

3.3 V or 5 V

ENABLE

(see Note A)

+

33

µF, 20 V

L1

18

µH

C5

D1

U1

C4 0.001

µF

+

C1

C2

0.01

µF

R1

10 k

Ω

33

µF, 20 V

AVCC

AVCC

AVCC

AVPP

VCCD0

VCCD1

VPPD0

VPPD1

OC

SHDN

GND

0.1

µF

0.1

µF

To CPU

TPS2211A

12 V

5 V

5 V

10

µF

0.1

µF

5 V

3.3 V

3.3 V

10

µF

0.1

µF

3.3 V

12 V

+

+

NOTE A: The enable terminal can be tied to a general-purpose I/O terminal on the PCMCIA controller or tied high.

Figure 26. TPS2211A With TPS6734 12-V, 120-mA Supply