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LT1313 数据表(PDF) 1 Page - Linear Technology

部件名 LT1313
功能描述  Dual PCMCIA VPP Driver/Regulator
PDF  12 Pages
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制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LT1313 数据表(HTML) 1 Page - Linear Technology

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LT1313
Dual PCMCIA
VPP Driver/Regulator
s
Digital Selection of 0V, VCC, 12V or Hi-Z
s
Output Current Capability: 120mA
s
Internal Current Limiting and Thermal Shutdown
s
Automatic Switching from 3.3V to 5V
s
Powered from Unregulated 13V to 20V Supply
s
Logic Compatible with Standard PCMCIA Controllers
s
Output Capacitors: 1
µF
s
Quiescent Current in Hi-Z or 0V Mode: 60
µA
s
Independent VPP Valid Status Feedback Signals
s
No VPP Overshoot
The LT
®1313 is a member of Linear Technology
Corporation’s PCMCIA driver/regulator family. It provides
0V, 3.3V, 5V, 12V and Hi-Z regulated power to the VPP
pins of two PCMCIA card slots from a single unregulated
13V to 20V supply. When used in conjunction with a PC Card
Interface Controller, the LT1313 forms a complete minimum
component-countinterfaceforpalmtop,pen-basedandnote-
book computers. The two VPP output voltages are inde-
pendently selected by four logic compatible digital inputs
which interface directly with industry standard PC Card
Interface Controllers.
Automatic 3.3V to 5V switching is provided by two inde-
pendent comparators which continuously monitor each
PC card VCC supply voltage and automatically adjust the
VPP output to match the associated VCC pin voltage when
the VPP = VCC mode is selected.
Two open-collector VPP VALID outputs are provided to
indicate when the VPP outputs are in regulation at 12V.
The LT1313 is available in 16-pin SO packaging.
FEATURES
DESCRIPTION
s
Notebook Computers
s
Palmtop Computers
s
Pen-Based Computers
s
Handi-Terminals
s
Bar-Code Readers
s
Flash Memory Programming
APPLICATIONS
TYPICAL APPLICATION
VPP1
VPP2
PCMCIA
CARD SLOT
#1
VCC
VPP1
VPP2
PCMCIA
CARD SLOT
#2
VCC
ASENSE
AVPPOUT
GND
GND
LT1313
VS
VS
AVALID
AEN0
AEN1
BSENSE
BVPPOUT
BVALID
BEN0
BEN1
13V TO 20V
+
1
µF
TANTALUM
1
µF
TANTALUM
DUAL PCMCIA
CARD SLOT
CONTROLLER
+
0.1
µF
3.3V/5V
3.3V/5V
1313 TA01
Typical PCMCIA Dual Slot VPP Driver
DEVICE
DESCRIPTION
PACKAGE
LT1312
SINGLE PCMCIA VPP DRIVER/REGULATOR
8-PIN SO
LT1313
DUAL PCMCIA VPP DRIVER/REGULATOR
16-PIN SO*
LTC
®1314 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
LTC1472
PROTECTED VCC AND VPP SWITCH MATRIX 16-PIN SO*
*NARROW BODY
Linear Technology PCMCIA Product Family
, LTC and LT are registered trademarks of Linear Technology Corporation.


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