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LTC1472CS Datasheet

  • LTC1472CS

  • Protected PCMCIA VCC and VPP Switching Matrix

  • 16頁

  • LINER

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LTC1472
Protected PCMCIA V
CC
and
VPP Switching Matrix
FEATURES
s
s
s
s
s
s
s
s
s
s
s
s
DESCRIPTION
The LTC
廬
1472 switching matrix routes power to both the
V
CC
and VPP power supply pins of the PCMCIA compatible
card socket. The V
CC
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,
V
CC
, 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 V
CC
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碌A(chǔ) 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.
, LTC and LT are registered trademarks of Linear Technology Corporation.
SafeSlot is a trademark of Linear Technology Corporation.
Both V
CC
and VPP Switching in a Single Package
Built-In Current Limit and Thermal Shutdown
16-Pin (Narrow) SOIC Package
Inrush Current Limited (Drives 150碌F Loads)
Continuous 12V Power Not Required
Extremely Low R
DS(ON)
NMOS Switches
Guaranteed 1A V
CC
Current and 120mA VPP Current
1碌A(chǔ) Quiescent Current in Standby
No External Components Required
Compatible with Industry Standard Controllers
Break-Before-Make Switching
Controlled Rise and Fall Times
APPLICATIONS
s
s
s
s
s
Notebook Computers
Palmtop Computers
Pen-Based Computers
Handi-Terminals
Bar-Code Readers
TYPICAL APPLICATION
Protected PCMCIA V
CC
and VPP Card Driver
3.3V
0.1碌F
3V
IN
5V
0.1碌F
VPP
OUT
LTC1472
V
DD
VPP EN0
PCMCIA
CARD SLOT
CONTROLLER
VPP EN1
V
CC
EN0
V
CC(IN)
V
CC(OUT)
OFF, 3.3V, 5V
5V
IN
VPP
IN
SHDN
TO 12V REGULATOR
OV, V
CC
, 12V, Hi-Z
VPP1
0.1碌F
VPP2
PCMCIA
CARD SLOT
V
CC
V
CC
0.1碌F
12V
Linear Technology PCMCIA Product Family
DEVICE
LT 1312
LT1313
LTC1314
LTC1315
LTC1470
LTC1471
LTC1472
LTC1472-TA01
DESCRIPTION
Single PCMCIA VPP Driver/Regulator
Dual PCMCIA VPP Driver/Regulator
Single PCMCIA Switch Matrix
Dual PCMCIA Switch Matrix
Protected V
CC
5V/3.3V Switch Matrix
Dual Protected V
CC
5V/3.3V Switch Matrix
Protected V
CC
and VPP Switch Matrix
廬
V
CC
EN1
GND
+
10k
1碌F
*Narrow Body
U
U
U
PACKAGE
8-Pin SO
16-Pin SO*
14-Pin SO
24-Pin SSOP
8-Pin SO
16-Pin SO*
16-Pin SO*
1

LTC1472CS 產(chǎn)品屬性

  • LTC1472

  • 50

  • 集成電路 (IC)

  • PMIC - 電源分配開關(guān)

  • -

  • PCMCIA/Cardbus 開關(guān)

  • 1

  • 180 毫歐

  • 是

  • 1A

  • 3.3V，5V

  • 0°C ~ 70°C

  • 表面貼裝

  • 16-SOIC（0.154"，3.90mm 寬）

  • 16-SOIC

  • 管件

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