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LTC1471CS Datasheet

  • LTC1471CS

  • Single and Dual PCMCIA Protected 3.3V/5V VCC Switches

  • 267.60KB

  • 12頁(yè)

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LTC1470/LTC1471
Single and Dual
PCMCIA Protected
3.3V/5V V
CC
Switches
FEATURES
s
s
s
s
s
s
s
s
s
s
s
s
DESCRIPTION
The LTC
廬
1470 switches the V
CC
pins of a Personal Com-
puter Memory Card International Association (PCMCIA)
card slot between three operating states: OFF, 3.3V and
5V. Two low R
DS(ON)
N-channel power MOSFETs are
driven by a built-in charge pump which generates a
voltage higher than the supply voltage to fully enhance
each switch when selected by the input control logic.
The LTC1470 inputs are compatible with industry stan-
dard PCMCIA controllers. A built-in XOR ensures that both
switches are never on at the same time. This function also
makes the LTC1470 compatible with both active-low and
active-high controllers (see Applications Information sec-
tion). The switch rise times are controlled to eliminate
power supply glitching.
The LTC1470 features built-in SafeSlot
TM
current limit and
thermal shutdown. The output is limited to 1A during short
circuit to ground but 2A of peak operating current is
allowed.
The LTC1471 is a dual version of the LTC1470 and is
available in a 16-pin SO package.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Single 3.3V/5V Switch in 8-Pin SO Package
Dual 3.3V/5V Switch in 16-Pin SO Package
Built-In Current Limit and Thermal Shutdown
Built-In Charge Pumps (No 12V Required)
Extremely Low R
DS(ON)
MOSFET Switches
Output Current Capability: 1A
Inrush Current Limited (Drives 150碌F Loads)
Quiescent Current in Standby: 1碌A(chǔ)
No Parasitic Body Diodes
Built-In XOR Function Eliminates 鈥淕lue鈥?Logic
Break-Before-Make Switching
Controlled Rise and Fall Times
APPLICATIONS
s
s
s
s
s
s
Notebook Computers
Palmtop Computers
Pen-Based Computers
Handi-Terminals
PC Card Reader/Writers
3.3V/5V Power Supply Switch
TYPICAL APPLICATION
Dual Slot PCMCIA 3.3V/5V V
CC
Switch
5V
0.1碌F
5V
IN
3V
IN
AOUT
LTC1471
AEN1
PCMCIA
CARD SLOT
CONTROLLER
AEN0
BEN1
(Hi-Z/3.3V/5V)
BOUT
BEN0
GND
V
CC
10k
1470/71 TA01
Linear Technology PCMCIA Product Family
DEVICE
DESCRIPTION
Single PCMCIA VPP Driver/Regulator
Dual PCMCIA VPP Driver/Regulator
Single PCMCIA Switch Matrix
Dual PCMCIA Switch Matrix
Single Protected V
CC
3.3V/5V Switch Matrix
Dual Protected V
CC
3.3V/5V Switch Matrix
Protected V
CC
and VPP Switch Matrix
PACKAGE
8-Pin SO
16-Pin SO*
14-Pin SO
24-Pin SSOP
8-Pin SO
16-Pin SO*
16-Pin SO*
3.3V
0.1碌F
V
CC
(Hi-Z/3.3V/5V)
V
CC
10k
V
CC
PCMCIA
CARD SLOT
PCMCIA
CARD SLOT
LT
廬
1312
LT1313
LTC1314
LTC1315
LTC1470
LTC1471
LTC1472
+
1碌F
+
1碌F
*Narrow Body
U
U
U
1

LTC1471CS 產(chǎn)品屬性

  • LTC1470-71

  • 50

  • 集成電路 (IC)

  • PMIC - 電源分配開關(guān)

  • -

  • PCMCIA/Cardbus 開關(guān)

  • 2

  • 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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