LTC1472CS datasheet(1/16 Pages) LINER

部件名	LTC1472CS

功能描述	Protected PCMCIA VCC and VPP Switching Matrix

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制造商	LINER [Linear Technology]

网页	http://www.linear.com

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LTC1472

Protected PCMCIA VCC and

VPP Switching Matrix

The LTC

®1472 switching matrix routes power to both the

VCC and VPP power supply pins of the PCMCIA compatible

card socket. The VCC output of the LTC1472 is switched

between three operating states: OFF, 3.3V, and 5V. The

VPP output is switched between four operating states: 0V,

VCC, 12V, and Hi-Z. The output voltages are selected by

two sets of digital inputs which are compatible with

industry standard PC Card controllers (see Truth Tables).

The VCC output of the LTC1472 can supply up to 1A of

current and the VPP output up to 120mA. Both switches

have built-in SafeSlot

TM current limiting and thermal shut-

down to protect the card, socket and power supply against

accidental short-circuit conditions.

The LTC1472 is designed to conserve power by automati-

cally dropping to 1

µA standby current when the two

outputs are switched OFF. A shutdown pin is provided

which holds the external 12V regulator in standby mode

except when required for VPP power.

The LTC1472 is available in 16-pin SO.

DESCRIPTION

FEATURES

s

Both VCC and VPP Switching in a Single Package

s

Built-In Current Limit and Thermal Shutdown

s

16-Pin (Narrow) SOIC Package

s

Inrush Current Limited (Drives 150

µF Loads)

s

Continuous 12V Power Not Required

s

Extremely Low RDS(ON) NMOS Switches

s

Guaranteed 1A VCC Current and 120mA VPP Current

s

1

µA Quiescent Current in Standby

s

No External Components Required

s

Compatible with Industry Standard Controllers

s

Break-Before-Make Switching

s

Controlled Rise and Fall Times

APPLICATIONS

s

Notebook Computers

s

Palmtop Computers

s

Pen-Based Computers

s

Handi-Terminals

s

Bar-Code Readers

TYPICAL APPLICATION

3VIN

VPPIN

5VIN

VDD

VPP EN0

VPP EN1

VCC EN0

VCC EN1

SHDN

VPPOUT

VCC(IN)

VCC(OUT)

LTC1472

GND

12V

3.3V

5V

OV, VCC, 12V, Hi-Z

VPP1

VPP2

VCC

PCMCIA

CARD SLOT

CONTROLLER

PCMCIA

CARD SLOT

OFF, 3.3V, 5V

LTC1472-TA01

1

µF

0.1

µF

0.1

µF

10k

0.1

µF

0.1

µF

TO 12V REGULATOR

+

DEVICE

DESCRIPTION

PACKAGE

LT

®1312

Single PCMCIA VPP Driver/Regulator

8-Pin SO

LT1313

Dual PCMCIA VPP Driver/Regulator

16-Pin SO*

LTC1314

Single PCMCIA Switch Matrix

14-Pin SO

LTC1315

Dual PCMCIA Switch Matrix

24-Pin SSOP

LTC1470

Protected VCC 5V/3.3V Switch Matrix

8-Pin SO

LTC1471

Dual Protected VCC 5V/3.3V Switch Matrix

16-Pin SO*

LTC1472

Protected VCC and VPP Switch Matrix

16-Pin SO*

*Narrow Body

Protected PCMCIA VCC and VPP Card Driver

Linear Technology PCMCIA Product Family

, LTC and LT are registered trademarks of Linear Technology Corporation.

SafeSlot is a trademark of Linear Technology Corporation.

类似零件编号 - LTC1472CS

制造商	部件名	数据表	功能描述
Linear Technology	LTC1472CS	199Kb / 16P	Protected PCMCIA VCC and VPP Switching Matrix

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